diff --git a/pkgs/os-specific/linux/apparmor/default.nix b/pkgs/os-specific/linux/apparmor/default.nix
index f588395e4e1a..a7afd8386245 100644
--- a/pkgs/os-specific/linux/apparmor/default.nix
+++ b/pkgs/os-specific/linux/apparmor/default.nix
@@ -161,7 +161,7 @@ let
     postInstall = ''
       sed -i $out/bin/aa-unconfined -e "/my_env\['PATH'\]/d"
       for prog in aa-audit aa-autodep aa-cleanprof aa-complain aa-disable aa-enforce aa-genprof aa-logprof aa-mergeprof aa-unconfined ; do
-        wrapProgram $out/bin/$prog --prefix PYTHONPATH : "$out/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
+        wrapProgram $out/bin/$prog --prefix PYTHONPATH : "$out/lib/${python.sitePackages}:$PYTHONPATH"
       done
 
       substituteInPlace $out/bin/aa-notify \