diff --git a/pkgs/development/python-modules/git-annex-adapter/default.nix b/pkgs/development/python-modules/git-annex-adapter/default.nix
index 1c76e5622b8..5922377ab3a 100644
--- a/pkgs/development/python-modules/git-annex-adapter/default.nix
+++ b/pkgs/development/python-modules/git-annex-adapter/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonPackage, isPy3k, fetchFromGitHub, substituteAll
+{ lib, stdenv, buildPythonPackage, isPy3k, fetchFromGitHub, fetchpatch, substituteAll
 , python, util-linux, pygit2, gitMinimal, git-annex, cacert
 }:
 
@@ -17,6 +17,11 @@ buildPythonPackage rec {
   };
 
   patches = [
+    # fix tests with recent versions of git-annex
+    (fetchpatch {
+      url = "https://github.com/alpernebbi/git-annex-adapter/commit/6c210d828e8a57b12c716339ad1bf15c31cd4a55.patch";
+      sha256 = "17kp7pnm9svq9av4q7hfic95xa1w3z02dnr8nmg14sjck2rlmqsi";
+    })
     (substituteAll {
       src = ./git-annex-path.patch;
       gitAnnex = "${git-annex}/bin/git-annex";