diff --git a/runelite-api/src/main/java/net/runelite/api/events/NpcCompositionChanged.java b/runelite-api/src/main/java/net/runelite/api/events/NpcDefinitionChanged.java
similarity index 97%
rename from runelite-api/src/main/java/net/runelite/api/events/NpcCompositionChanged.java
rename to runelite-api/src/main/java/net/runelite/api/events/NpcDefinitionChanged.java
index 29cdd890b6..7d9569f5bd 100644
--- a/runelite-api/src/main/java/net/runelite/api/events/NpcCompositionChanged.java
+++ b/runelite-api/src/main/java/net/runelite/api/events/NpcDefinitionChanged.java
@@ -31,7 +31,7 @@ import net.runelite.api.NPC;
  * Fires after the composition of an {@link NPC} changes.
  */
 @Value
-public class NpcCompositionChanged
+public class NpcDefinitionChanged
 {
 	/**
 	 * The NPC of which the composition changed.
diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/npchighlight/NpcIndicatorsPlugin.java b/runelite-client/src/main/java/net/runelite/client/plugins/npchighlight/NpcIndicatorsPlugin.java
index 07b877e1a8..63ec966f6d 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/npchighlight/NpcIndicatorsPlugin.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/npchighlight/NpcIndicatorsPlugin.java
@@ -59,7 +59,7 @@ import net.runelite.api.events.GameTick;
 import net.runelite.api.events.GraphicsObjectCreated;
 import net.runelite.api.events.MenuEntryAdded;
 import net.runelite.api.events.MenuOptionClicked;
-import net.runelite.api.events.NpcCompositionChanged;
+import net.runelite.api.events.NpcDefinitionChanged;
 import net.runelite.api.events.NpcDespawned;
 import net.runelite.api.events.NpcSpawned;
 import net.runelite.client.callback.ClientThread;
@@ -333,7 +333,7 @@ public class NpcIndicatorsPlugin extends Plugin
 	}
 
 	@Subscribe
-	public void onNpcCompositionChanged(NpcCompositionChanged event)
+	public void onNpcDefinitionChanged(NpcDefinitionChanged event)
 	{
 		NPC npc = event.getNpc();
 		highlightNpcIfMatch(npc);
diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/slayer/SlayerPlugin.java b/runelite-client/src/main/java/net/runelite/client/plugins/slayer/SlayerPlugin.java
index d54b21f7dd..b805edd030 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/slayer/SlayerPlugin.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/slayer/SlayerPlugin.java
@@ -67,7 +67,7 @@ import net.runelite.api.events.ExperienceChanged;
 import net.runelite.api.events.GameStateChanged;
 import net.runelite.api.events.GameTick;
 import net.runelite.api.events.InteractingChanged;
-import net.runelite.api.events.NpcCompositionChanged;
+import net.runelite.api.events.NpcDefinitionChanged;
 import net.runelite.api.events.NpcDespawned;
 import net.runelite.api.events.NpcSpawned;
 import net.runelite.api.events.VarbitChanged;
@@ -351,7 +351,7 @@ public class SlayerPlugin extends Plugin
 	}
 
 	@Subscribe
-	public void onNpcCompositionChanged(NpcCompositionChanged event)
+	public void onNpcDefinitionChanged(NpcDefinitionChanged event)
 	{
 		NPC npc = event.getNpc();
 
diff --git a/runelite-mixins/src/main/java/net/runelite/mixins/RSNPCMixin.java b/runelite-mixins/src/main/java/net/runelite/mixins/RSNPCMixin.java
index 327886a637..e33afa700b 100644
--- a/runelite-mixins/src/main/java/net/runelite/mixins/RSNPCMixin.java
+++ b/runelite-mixins/src/main/java/net/runelite/mixins/RSNPCMixin.java
@@ -29,7 +29,7 @@ import net.runelite.api.AnimationID;
 import net.runelite.api.NPCDefinition;
 import net.runelite.api.Perspective;
 import net.runelite.api.coords.LocalPoint;
-import net.runelite.api.events.NpcCompositionChanged;
+import net.runelite.api.events.NpcDefinitionChanged;
 import net.runelite.api.events.NpcDespawned;
 import net.runelite.api.mixins.Copy;
 import net.runelite.api.mixins.FieldHook;
@@ -114,7 +114,7 @@ public abstract class RSNPCMixin implements RSNPC
 		}
 		else if (this.getId() != -1)
 		{
-			client.getCallbacks().post(new NpcCompositionChanged(this));
+			client.getCallbacks().post(new NpcDefinitionChanged(this));
 		}
 	}