diff --git a/pkgs/development/python-modules/plaster-pastedeploy/default.nix b/pkgs/development/python-modules/plaster-pastedeploy/default.nix
index ac6cdc31f48..e794b53950e 100644
--- a/pkgs/development/python-modules/plaster-pastedeploy/default.nix
+++ b/pkgs/development/python-modules/plaster-pastedeploy/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, fetchPypi
+{ buildPythonPackage, fetchPypi, fetchpatch
 , plaster, PasteDeploy
 , pytest, pytestcov
 }:
@@ -12,6 +12,15 @@ buildPythonPackage rec {
     sha256 = "c231130cb86ae414084008fe1d1797db7e61dc5eaafb5e755de21387c27c6fae";
   };
 
+  patches = [
+    # Fix tests compatibility with PasteDeploy 2+
+    # https://github.com/Pylons/plaster_pastedeploy/pull/17
+    (fetchpatch {
+      url = https://github.com/Pylons/plaster_pastedeploy/commit/d77d81a57e917c67a20332beca8f418651172905.patch;
+      sha256 = "0n5vnqn8kad41kn9grcwiic6c6rhvy1ji3w81s2v9xyk0bd9yryf";
+    })
+  ];
+
   checkPhase = ''
     py.test
   '';