diff --git a/scripts/Start Stable Diffusion UI.cmd b/scripts/Start Stable Diffusion UI.cmd
index f3af626c..2f3e32f9 100644
--- a/scripts/Start Stable Diffusion UI.cmd	
+++ b/scripts/Start Stable Diffusion UI.cmd	
@@ -1,7 +1,9 @@
 @echo off
 
 @REM Delete the post-activate hook from the old installer
-echo. > installer\etc\conda\activate.d\post_activate.bat
+if exist "installer\etc\conda\activate.d\post_activate.bat" (
+    echo. > installer\etc\conda\activate.d\post_activate.bat
+)
 
 @call installer\Scripts\activate.bat