diff --git a/pkgs/applications/version-management/cvs2svn/default.nix b/pkgs/applications/version-management/cvs2svn/default.nix
index af2b5cdc9a3d..c36d9c738cfa 100644
--- a/pkgs/applications/version-management/cvs2svn/default.nix
+++ b/pkgs/applications/version-management/cvs2svn/default.nix
@@ -1,9 +1,9 @@
 { lib, fetchurl, makeWrapper
-, python2Packages
+, pypy2Packages
 , cvs, subversion, git, breezy
 }:
 
-python2Packages.buildPythonApplication  rec {
+pypy2Packages.buildPythonApplication  rec {
   pname = "cvs2svn";
   version = "2.5.0";
 
@@ -16,7 +16,7 @@ python2Packages.buildPythonApplication  rec {
 
   checkInputs = [ subversion git breezy ];
 
-  checkPhase = "python run-tests.py";
+  checkPhase = "pypy2 run-tests.py";
 
   doCheck = false; # Couldn't find node 'transaction...' in expected output tree