diff --git a/Editor/HumanoidFree/Configuration_Editor.cs b/Editor/HumanoidFree/Configuration_Editor.cs
index 28d71b0..6298590 100644
--- a/Editor/HumanoidFree/Configuration_Editor.cs
+++ b/Editor/HumanoidFree/Configuration_Editor.cs
@@ -970,7 +970,7 @@ namespace Passer.Humanoid {
         }
 
         private static void CheckExtensionNetworking(Configuration configuration) {
-            if (isPhotonPun2Available) {
+            if (isPhotonPun2Available && isPhotonPun2SupportAvailable) {
                 GlobalDefine("hPHOTON2");
                 GlobalUndefine("hPHOTON1");
                 //Debug.Log(isPhotonVoice2Available);
@@ -1441,6 +1441,12 @@ namespace Passer.Humanoid {
             }
         }
 
+        private static bool isPhotonPun2SupportAvailable {
+            get {
+                return DoesTypeExist("Passer.Humanoid.HumanoidPlayerPunVoice");
+            }
+        }
+
         #endregion Support
 
         #endregion