diff --git a/pkgs/development/python-modules/generic/default.nix b/pkgs/development/python-modules/generic/default.nix
index 71b5c1952a0..cc80388e689 100644
--- a/pkgs/development/python-modules/generic/default.nix
+++ b/pkgs/development/python-modules/generic/default.nix
@@ -5,7 +5,7 @@
 
 { python, setuptools, wrapPython, lib, offlineDistutils, recursivePthLoader }:
 
-{ name, namePrefix ? "python-"
+{ name, namePrefix ? python.libPrefix + "-"
 
 , buildInputs ? []