diff --git a/Assets/Scripts/GoogleSignInIOSBuildPatch.cs b/Assets/Scripts/GoogleSignInIOSBuildPatch.cs
index 34446859..610c8572 100644
--- a/Assets/Scripts/GoogleSignInIOSBuildPatch.cs
+++ b/Assets/Scripts/GoogleSignInIOSBuildPatch.cs
@@ -1,9 +1,11 @@
-#if UNITY_IOS
-using System.IO;
+#if UNITY_IOS && UNITY_EDITOR
 using UnityEditor;
+using UnityEditor.Build;
+using UnityEditor.Build.Reporting;
 using UnityEditor.Callbacks;
 using UnityEditor.iOS.Xcode;
 using UnityEngine;
+using System.IO;
 
 public class GoogleSignInIOSBuildPatch
 {
@@ -19,10 +21,10 @@ public class GoogleSignInIOSBuildPatch
         plist.ReadFromFile(plistPath);
         PlistElementDict rootDict = plist.root;
 
-        // 1. Add GIDClientID
+        // 1. Set GIDClientID
         rootDict.SetString("GIDClientID", GameConstants.iOS_ClientID);
 
-        // 2. Add custom URL scheme
+        // 2. Add CFBundleURLSchemes
         PlistElementArray urlTypes = rootDict.CreateArray("CFBundleURLTypes");
         PlistElementDict urlDict = urlTypes.AddDict();
         PlistElementArray schemes = urlDict.CreateArray("CFBundleURLSchemes");
@@ -35,7 +37,7 @@ public class GoogleSignInIOSBuildPatch
         string appControllerPath = Path.Combine(pathToBuiltProject, "Classes", "UnityAppController.mm");
         if (!File.Exists(appControllerPath))
         {
-            Debug.LogWarning("⚠️ UnityAppController.mm not found. Skipping patch.");
+            Debug.LogWarning("⚠️ UnityAppController.mm not found.");
             return;
         }
 
@@ -48,14 +50,13 @@ public class GoogleSignInIOSBuildPatch
             int index = content.IndexOf(marker);
             if (index > -1)
             {
-                int insertAfter = content.IndexOf("{", index) + 1;
-                content = content.Insert(insertAfter, "\n    " + injection);
-                File.WriteAllText(appControllerPath, content);
-                Debug.Log("✅ UnityAppController.mm patched with GIDClientID.");
-            }
-            else
-            {
-                Debug.LogWarning("⚠️ didFinishLaunchingWithOptions not found in UnityAppController.mm");
+                int braceIndex = content.IndexOf("{", index);
+                if (braceIndex > -1)
+                {
+                    content = content.Insert(braceIndex + 1, "\n    " + injection);
+                    File.WriteAllText(appControllerPath, content);
+                    Debug.Log("✅ UnityAppController.mm patched with GIDClientID.");
+                }
             }
         }
     }