diff --git a/default.nix b/default.nix
index d4eb735..93e63de 100644
--- a/default.nix
+++ b/default.nix
@@ -162,7 +162,7 @@ let
 
     #core idea: Generate UUID from storage path of this script, ensure
     #new prefix for any changes. Needs fast prefix installs and state outside.
-      uuid=$(basename $(${pkgs.nix}/bin/nix path-info "$BASH_SOURCE"))
+      uuid=$(basename $(${pkgs.nix}/bin/nix path-info "$(readlink -f $BASH_SOURCE)"))
       export WINEPREFIX="${prefixBaseDir}/$uuid"
 
     #export all global env vars