diff --git a/wfvm/win.nix b/wfvm/win.nix
index 9153d39..395ee8c 100644
--- a/wfvm/win.nix
+++ b/wfvm/win.nix
@@ -161,7 +161,7 @@ let
       {
         name = "DisablePasswordExpiry";
         script = ''
-          win exec 'wmic UserAccount set PasswordExpires=False'
+          win-exec 'wmic UserAccount set PasswordExpires=False'
         '';
       }
     ] ++