diff --git a/unity.inc.php b/unity.inc.php
index e5e57c9..9994b6f 100644
--- a/unity.inc.php
+++ b/unity.inc.php
@@ -9,7 +9,7 @@ task('unity', function()
   if(is_win())
   {
     $unity_app_path = "'$unity_path/Editor/Unity.exe'";
-    run_background_proc($unity_app_path, ['-projectPath', "'$proj_path'"]);
+    run_background_proc($unity_app_path, ['-projectPath', "$proj_path"]);
   }
   else
   {