diff --git a/pkgs/os-specific/linux/libselinux/default.nix b/pkgs/os-specific/linux/libselinux/default.nix
index 0175f79483fb..4ddc30102212 100644
--- a/pkgs/os-specific/linux/libselinux/default.nix
+++ b/pkgs/os-specific/linux/libselinux/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
     makeFlagsArray+=("MAN3DIR=$out/share/man/man3")
     makeFlagsArray+=("MAN5DIR=$out/share/man/man5")
     makeFlagsArray+=("MAN8DIR=$out/share/man/man8")
-    makeFlagsArray+=("PYSITEDIR=$out/lib/python2.7/site-packages")
+    makeFlagsArray+=("PYSITEDIR=$out/lib/${python.libPrefix}/site-packages")
   '';
 
   installTargets = [ "install" ] ++ optional enablePython "install-pywrap";