diff --git a/ts/messageModifiers/MessageReceipts.ts b/ts/messageModifiers/MessageReceipts.ts
index f3ca3fb085..f495e0d8fa 100644
--- a/ts/messageModifiers/MessageReceipts.ts
+++ b/ts/messageModifiers/MessageReceipts.ts
@@ -83,6 +83,7 @@ function remove(receipt: MessageReceiptAttributesType): void {
     generateCacheKey({
       sender: receipt.sourceServiceId,
       timestamp: receipt.messageSentAt,
+      type: receipt.type,
     })
   );
   receipt.removeFromMessageReceiverCache();
@@ -351,6 +352,7 @@ export async function onReceipt(
     generateCacheKey({
       sender: receipt.sourceServiceId,
       timestamp: receipt.messageSentAt,
+      type: receipt.type,
     }),
     receipt
   );
diff --git a/ts/messageModifiers/ReadSyncs.ts b/ts/messageModifiers/ReadSyncs.ts
index 39e75411b5..71db8c548c 100644
--- a/ts/messageModifiers/ReadSyncs.ts
+++ b/ts/messageModifiers/ReadSyncs.ts
@@ -33,6 +33,7 @@ function remove(sync: ReadSyncAttributesType): void {
     generateCacheKey({
       sender: sync.senderId,
       timestamp: sync.timestamp,
+      type: 'readsync',
     })
   );
   sync.removeFromMessageReceiverCache();
@@ -109,6 +110,7 @@ export async function onSync(sync: ReadSyncAttributesType): Promise<void> {
     generateCacheKey({
       sender: sync.senderId,
       timestamp: sync.timestamp,
+      type: 'readsync',
     }),
     sync
   );
diff --git a/ts/messageModifiers/ViewSyncs.ts b/ts/messageModifiers/ViewSyncs.ts
index f1fe53fe0f..35c9bf1df2 100644
--- a/ts/messageModifiers/ViewSyncs.ts
+++ b/ts/messageModifiers/ViewSyncs.ts
@@ -34,6 +34,7 @@ function remove(sync: ViewSyncAttributesType): void {
     generateCacheKey({
       sender: sync.senderId,
       timestamp: sync.timestamp,
+      type: 'viewsync',
     })
   );
   sync.removeFromMessageReceiverCache();
@@ -78,6 +79,7 @@ export async function onSync(sync: ViewSyncAttributesType): Promise<void> {
     generateCacheKey({
       sender: sync.senderId,
       timestamp: sync.timestamp,
+      type: 'viewsync',
     }),
     sync
   );
diff --git a/ts/messageModifiers/generateCacheKey.ts b/ts/messageModifiers/generateCacheKey.ts
index 87b0f0e4d1..246732e6bd 100644
--- a/ts/messageModifiers/generateCacheKey.ts
+++ b/ts/messageModifiers/generateCacheKey.ts
@@ -1,16 +1,24 @@
 // Copyright 2016 Signal Messenger, LLC
 // SPDX-License-Identifier: AGPL-3.0-only
 
+import type { MessageReceiptType } from './MessageReceipts';
+
 // This function is necessary because the only thing we can guarantee will be unique is
 //  three pieces of data: sender, deviceId, and timestamp.
 // Because we don't care which device interacted with our message, we collapse this down
 //  to: sender + timestamp.
+// In some cases, modifiers are stored in the same map, so we also add the modifier type
+
+type ModifierType = MessageReceiptType | 'readsync' | 'viewsync';
+
 export function generateCacheKey({
   sender,
   timestamp,
+  type,
 }: {
   sender: string;
   timestamp: number;
+  type: ModifierType;
 }): string {
-  return `cacheKey-${sender}-${timestamp}`;
+  return `cacheKey-${sender}-${timestamp}-${type}`;
 }