1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/subunit/default.nix b/nixpkgs/pkgs/development/python-modules/subunit/default.nix
index f46226891877..c59626fc85c3 100644
--- a/nixpkgs/pkgs/development/python-modules/subunit/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/subunit/default.nix
@@ -27,7 +27,7 @@ buildPythonPackage {
       --ignore=python/subunit/tests/test_{output_filter,test_protocol{,2}}.py
   '';
 
-  patchPhase = ''
+  postPatch = ''
     sed -i 's/version=VERSION/version="${subunit.version}"/' setup.py
   '';
 }