diff --git a/src/UnityExtension/Assets/Editor/GitHub.Unity/ExtensionLoader/ExtensionLoader.cs b/src/UnityExtension/Assets/Editor/GitHub.Unity/ExtensionLoader/ExtensionLoader.cs
index 770a49ec5..a04601fa9 100644
--- a/src/UnityExtension/Assets/Editor/GitHub.Unity/ExtensionLoader/ExtensionLoader.cs
+++ b/src/UnityExtension/Assets/Editor/GitHub.Unity/ExtensionLoader/ExtensionLoader.cs
@@ -32,6 +32,10 @@ public bool Initialized
 
         static ExtensionLoader()
         {
+            if (Environment.GetEnvironmentVariable("GITHUB_UNITY_DISABLE") == "1")
+            {
+                return;
+            }
             EditorApplication.update += Initialize;
         }