diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index dc9cafa3cb05..b1195277b727 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5058,6 +5058,13 @@ in {
     buildInputs = with self; [ pytest ];
     propagatedBuildInputs = with self; [ pytestcache pep8 ];
 
+    checkPhase = ''
+      py.test
+    '';
+
+    # Fails
+    doCheck = false;
+
     meta = {
       license = licenses.mit;
       website = "https://pypi.python.org/pypi/pytest-pep8";