diff --git a/src/main/java/net/dv8tion/jda/internal/managers/GuildManagerImpl.java b/src/main/java/net/dv8tion/jda/internal/managers/GuildManagerImpl.java
index 8eb9c07b83..177664d665 100644
--- a/src/main/java/net/dv8tion/jda/internal/managers/GuildManagerImpl.java
+++ b/src/main/java/net/dv8tion/jda/internal/managers/GuildManagerImpl.java
@@ -307,14 +307,14 @@ public GuildManager setFeatures(@Nonnull Collection<String> features)
     @Override
     public GuildManager addFeatures(@Nonnull Collection<String> features)
     {
-        return updateFeatures(features, this.features::add);
+        return updateFeatures(features, feature -> this.features.add(feature));
     }
 
     @Nonnull
     @Override
     public GuildManager removeFeatures(@Nonnull Collection<String> features)
     {
-        return updateFeatures(features, this.features::remove);
+        return updateFeatures(features, feature -> this.features.remove(feature));
     }
 
     private GuildManager updateFeatures(Collection<String> changed, Consumer<String> op)