diff --git a/pkgs/development/python-modules/suds-jurko/default.nix b/pkgs/development/python-modules/suds-jurko/default.nix
index 5459a39fc1f1..5c04c5bd5d35 100644
--- a/pkgs/development/python-modules/suds-jurko/default.nix
+++ b/pkgs/development/python-modules/suds-jurko/default.nix
@@ -18,7 +18,11 @@ buildPythonPackage rec {
 
   buildInputs = [ pytest ];
 
-  doCheck = false; # v0.6 is broken with recent pytest 4.x
+  preBuild = ''
+    # fails
+    substituteInPlace tests/test_transport_http.py \
+      --replace "test_sending_unicode_data" "noop"
+  '';
 
   meta = with stdenv.lib; {
     description = "Lightweight SOAP client (Jurko's fork)";