diff --git a/plug-ins/Apple.GameKit/Apple.GameKit_Unity/Assets/Apple.GameKit/Source/GKGameActivity.cs b/plug-ins/Apple.GameKit/Apple.GameKit_Unity/Assets/Apple.GameKit/Source/GKGameActivity.cs
index 281970fd..46e56e83 100644
--- a/plug-ins/Apple.GameKit/Apple.GameKit_Unity/Assets/Apple.GameKit/Source/GKGameActivity.cs
+++ b/plug-ins/Apple.GameKit/Apple.GameKit_Unity/Assets/Apple.GameKit/Source/GKGameActivity.cs
@@ -32,7 +32,10 @@ public class GKGameActivity : NSObject
 
         static GKGameActivity()
         {
-            Interop.GKGameActivity_SetWantsToPlayCallback(OnWantsToPlay);
+            if (Availability.IsTypeAvailable<GKGameActivity>())
+            {
+                Interop.GKGameActivity_SetWantsToPlayCallback(OnWantsToPlay);
+            }
         }
 
 #if IOS_19_BETA_1_WANTSTOPLAY_MAIN_THREAD_WORKAROUND