diff --git a/pkgs/by-name/cl/clapper-enhancers/package.nix b/pkgs/by-name/cl/clapper-enhancers/package.nix
index 96bba08885a2..3a3feb421334 100644
--- a/pkgs/by-name/cl/clapper-enhancers/package.nix
+++ b/pkgs/by-name/cl/clapper-enhancers/package.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   postFixup = ''
-    buildPythonPath "$out $pythonPath"
+    buildPythonPath "$out ''${pythonPath[*]}"
     for yt_plugin in $out/lib/clapper-enhancers/plugins/yt-dlp/*.py; do
       patchPythonScript $yt_plugin
     done