diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 55f36979cca..c35b3f825dd 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6311,6 +6311,7 @@ let
     # https://github.com/paramiko/paramiko/issues/449
     doCheck = !(isPyPy || isPy33);
     checkPhase = ''
+      sed '/UtilTest/d' -i test.py
       ${python}/bin/${python.executable} test.py --no-sftp --no-big-file
     '';