diff --git a/twilight-gateway/src/error.rs b/twilight-gateway/src/error.rs
index 98d757c149a..12e8936a3d8 100644
--- a/twilight-gateway/src/error.rs
+++ b/twilight-gateway/src/error.rs
@@ -50,7 +50,13 @@ impl Display for ProcessError {
     fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult {
         match &self.kind {
             ProcessErrorType::Deserializing { event } => {
-                f.write_str("gateway event could not be deserialized: event=")?;
+                f.write_str("gateway event could not be deserialized: source=")?;
+                if let Some(source) = &self.source {
+                    Display::fmt(source, f)?;
+                } else {
+                    f.write_str("None")?;
+                }
+                f.write_str(", event=")?;
                 f.write_str(event)
             }
             ProcessErrorType::SendingMessage => {
@@ -161,7 +167,13 @@ impl Display for ReceiveMessageError {
                 f.write_str("binary message could not be decompressed")
             }
             ReceiveMessageErrorType::Deserializing { ref event } => {
-                f.write_str("gateway event could not be deserialized: event=")?;
+                f.write_str("gateway event could not be deserialized: source=")?;
+                if let Some(source) = &self.source {
+                    Display::fmt(source, f)?;
+                } else {
+                    f.write_str("None")?;
+                }
+                f.write_str(", event=")?;
                 f.write_str(event)
             }
             ReceiveMessageErrorType::FatallyClosed { close_code } => {
diff --git a/twilight-model/src/application/command/mod.rs b/twilight-model/src/application/command/mod.rs
index 056997f9162..9b09b54e221 100644
--- a/twilight-model/src/application/command/mod.rs
+++ b/twilight-model/src/application/command/mod.rs
@@ -68,6 +68,7 @@ pub struct Command {
     pub description_localizations: Option<HashMap<String, String>>,
     /// Guild ID of the command, if not global.
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub id: Option<Id<CommandMarker>>,
diff --git a/twilight-model/src/application/interaction/application_command/mod.rs b/twilight-model/src/application/interaction/application_command/mod.rs
index 620610522f7..f8fc7a90a62 100644
--- a/twilight-model/src/application/interaction/application_command/mod.rs
+++ b/twilight-model/src/application/interaction/application_command/mod.rs
@@ -31,6 +31,7 @@ use serde::{Deserialize, Serialize};
 pub struct CommandData {
     /// ID of the guild the command is registered to.
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     /// ID of the command.
     pub id: Id<CommandMarker>,
diff --git a/twilight-model/src/application/interaction/mod.rs b/twilight-model/src/application/interaction/mod.rs
index b7d60c44672..69732c549ab 100644
--- a/twilight-model/src/application/interaction/mod.rs
+++ b/twilight-model/src/application/interaction/mod.rs
@@ -77,6 +77,7 @@ pub struct Interaction {
     pub data: Option<InteractionData>,
     /// ID of the guild the interaction was invoked in.
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     /// Guild’s preferred locale.
     ///
diff --git a/twilight-model/src/channel/message/mod.rs b/twilight-model/src/channel/message/mod.rs
index 0b4e18cb48d..cf66b15a4ce 100644
--- a/twilight-model/src/channel/message/mod.rs
+++ b/twilight-model/src/channel/message/mod.rs
@@ -129,6 +129,7 @@ pub struct Message {
     ///
     /// [`Guild`]: crate::guild::Guild
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     /// Id of the message.
     pub id: Id<MessageMarker>,
diff --git a/twilight-model/src/channel/message/reference.rs b/twilight-model/src/channel/message/reference.rs
index 3f6c6702a71..de3a003684d 100644
--- a/twilight-model/src/channel/message/reference.rs
+++ b/twilight-model/src/channel/message/reference.rs
@@ -15,6 +15,7 @@ pub struct MessageReference {
     pub channel_id: Option<Id<ChannelMarker>>,
     /// Originating message's guild ID.
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     /// Originating message's ID.
     #[serde(skip_serializing_if = "Option::is_none")]
diff --git a/twilight-model/src/channel/message/sticker/mod.rs b/twilight-model/src/channel/message/sticker/mod.rs
index fdd6da1b23e..ea57079d0e5 100644
--- a/twilight-model/src/channel/message/sticker/mod.rs
+++ b/twilight-model/src/channel/message/sticker/mod.rs
@@ -35,6 +35,7 @@ pub struct Sticker {
     pub format_type: StickerFormatType,
     /// ID of the guild that owns the sticker.
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     /// Unique ID of the sticker.
     pub id: Id<StickerMarker>,
diff --git a/twilight-model/src/channel/mod.rs b/twilight-model/src/channel/mod.rs
index 208a757fd34..03d5bd6f413 100644
--- a/twilight-model/src/channel/mod.rs
+++ b/twilight-model/src/channel/mod.rs
@@ -87,6 +87,7 @@ pub struct Channel {
     pub flags: Option<ChannelFlags>,
     /// ID of the guild the channel is in.
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     /// Hash of the channel's icon.
     #[serde(skip_serializing_if = "Option::is_none")]
diff --git a/twilight-model/src/channel/webhook/mod.rs b/twilight-model/src/channel/webhook/mod.rs
index dcdee4fac3e..dad5dddbf97 100644
--- a/twilight-model/src/channel/webhook/mod.rs
+++ b/twilight-model/src/channel/webhook/mod.rs
@@ -21,6 +21,7 @@ pub struct Webhook {
     pub avatar: Option<ImageHash>,
     pub channel_id: Id<ChannelMarker>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     pub id: Id<WebhookMarker>,
     #[serde(default = "WebhookType::default", rename = "type")]
diff --git a/twilight-model/src/gateway/payload/incoming/message_delete.rs b/twilight-model/src/gateway/payload/incoming/message_delete.rs
index 32b965d797a..276fad599db 100644
--- a/twilight-model/src/gateway/payload/incoming/message_delete.rs
+++ b/twilight-model/src/gateway/payload/incoming/message_delete.rs
@@ -8,6 +8,7 @@ use serde::{Deserialize, Serialize};
 pub struct MessageDelete {
     pub channel_id: Id<ChannelMarker>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     pub id: Id<MessageMarker>,
 }
diff --git a/twilight-model/src/gateway/payload/incoming/message_delete_bulk.rs b/twilight-model/src/gateway/payload/incoming/message_delete_bulk.rs
index 465540ceb37..5e0ec899342 100644
--- a/twilight-model/src/gateway/payload/incoming/message_delete_bulk.rs
+++ b/twilight-model/src/gateway/payload/incoming/message_delete_bulk.rs
@@ -8,6 +8,7 @@ use serde::{Deserialize, Serialize};
 pub struct MessageDeleteBulk {
     pub channel_id: Id<ChannelMarker>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     pub ids: Vec<Id<MessageMarker>>,
 }
diff --git a/twilight-model/src/gateway/payload/incoming/message_update.rs b/twilight-model/src/gateway/payload/incoming/message_update.rs
index d5cf4659068..b06777da586 100644
--- a/twilight-model/src/gateway/payload/incoming/message_update.rs
+++ b/twilight-model/src/gateway/payload/incoming/message_update.rs
@@ -43,6 +43,7 @@ pub struct MessageUpdate {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub embeds: Option<Vec<Embed>>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     pub id: Id<MessageMarker>,
     #[serde(rename = "type", skip_serializing_if = "Option::is_none")]
diff --git a/twilight-model/src/gateway/payload/incoming/reaction_remove_all.rs b/twilight-model/src/gateway/payload/incoming/reaction_remove_all.rs
index 0807bcbc519..711158f8ece 100644
--- a/twilight-model/src/gateway/payload/incoming/reaction_remove_all.rs
+++ b/twilight-model/src/gateway/payload/incoming/reaction_remove_all.rs
@@ -9,5 +9,6 @@ pub struct ReactionRemoveAll {
     pub channel_id: Id<ChannelMarker>,
     pub message_id: Id<MessageMarker>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
 }
diff --git a/twilight-model/src/gateway/payload/incoming/typing_start.rs b/twilight-model/src/gateway/payload/incoming/typing_start.rs
index d27d755b94c..cd6ab10b32d 100644
--- a/twilight-model/src/gateway/payload/incoming/typing_start.rs
+++ b/twilight-model/src/gateway/payload/incoming/typing_start.rs
@@ -11,6 +11,7 @@ use serde::{Deserialize, Serialize};
 pub struct TypingStart {
     pub channel_id: Id<ChannelMarker>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub member: Option<Member>,
diff --git a/twilight-model/src/gateway/presence/mod.rs b/twilight-model/src/gateway/presence/mod.rs
index 1c1ce303900..0acafa9e8f1 100644
--- a/twilight-model/src/gateway/presence/mod.rs
+++ b/twilight-model/src/gateway/presence/mod.rs
@@ -67,6 +67,7 @@ pub(crate) struct PresenceIntermediary {
     #[serde(default)]
     pub activities: Vec<Activity>,
     pub client_status: ClientStatus,
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     pub nick: Option<String>,
     pub status: Status,
diff --git a/twilight-model/src/gateway/reaction.rs b/twilight-model/src/gateway/reaction.rs
index 3c2c4cf1250..42ef7c60928 100644
--- a/twilight-model/src/gateway/reaction.rs
+++ b/twilight-model/src/gateway/reaction.rs
@@ -12,6 +12,7 @@ use serde::{Deserialize, Serialize};
 pub struct GatewayReaction {
     pub channel_id: Id<ChannelMarker>,
     pub emoji: ReactionType,
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     pub member: Option<Member>,
     pub message_id: Id<MessageMarker>,
diff --git a/twilight-model/src/guild/audit_log/entry.rs b/twilight-model/src/guild/audit_log/entry.rs
index f9dfe211f83..7012b746bad 100644
--- a/twilight-model/src/guild/audit_log/entry.rs
+++ b/twilight-model/src/guild/audit_log/entry.rs
@@ -22,6 +22,7 @@ pub struct AuditLogEntry {
     ///
     /// [`GuildAuditLogEntryCreate`]: crate::gateway::payload::incoming::GuildAuditLogEntryCreate
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     /// ID of the entire entry.
     pub id: Id<AuditLogEntryMarker>,
diff --git a/twilight-model/src/guild/integration.rs b/twilight-model/src/guild/integration.rs
index 17135507c31..db27752d0a3 100644
--- a/twilight-model/src/guild/integration.rs
+++ b/twilight-model/src/guild/integration.rs
@@ -27,6 +27,7 @@ pub struct GuildIntegration {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub expire_grace_period: Option<u64>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     pub id: Id<IntegrationMarker>,
     #[serde(rename = "type")]
diff --git a/twilight-model/src/oauth/application.rs b/twilight-model/src/oauth/application.rs
index f1054d6dc34..66f676ae60a 100644
--- a/twilight-model/src/oauth/application.rs
+++ b/twilight-model/src/oauth/application.rs
@@ -20,6 +20,7 @@ pub struct Application {
     pub custom_install_url: Option<String>,
     /// Description of the application.
     pub description: String,
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     /// Public flags of the application.
     pub flags: Option<ApplicationFlags>,
diff --git a/twilight-model/src/voice/voice_state.rs b/twilight-model/src/voice/voice_state.rs
index 32f505d5959..81d1ed5b886 100644
--- a/twilight-model/src/voice/voice_state.rs
+++ b/twilight-model/src/voice/voice_state.rs
@@ -20,6 +20,7 @@ pub struct VoiceState {
     pub deaf: bool,
     /// Guild this voice state is for.
     #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(default)]
     pub guild_id: Option<Id<GuildMarker>>,
     /// Member this voice state is for.
     #[serde(skip_serializing_if = "Option::is_none")]