diff --git a/pkgs/by-name/ha/hamster/package.nix b/pkgs/by-name/ha/hamster/package.nix
index edd963ee9b5c..ea37f4237962 100644
--- a/pkgs/by-name/ha/hamster/package.nix
+++ b/pkgs/by-name/ha/hamster/package.nix
@@ -62,7 +62,7 @@ python3Packages.buildPythonApplication rec {
   '';
 
   postFixup = ''
-    wrapPythonProgramsIn $out/libexec "$out $pythonPath"
+    wrapPythonProgramsIn $out/libexec "$out ''${pythonPath[*]}"
   '';
 
   meta = {