diff --git a/pkgs/development/python-modules/mat2/default.nix b/pkgs/development/python-modules/mat2/default.nix
index 6c1ba9a40c63..99d94d3d1a80 100644
--- a/pkgs/development/python-modules/mat2/default.nix
+++ b/pkgs/development/python-modules/mat2/default.nix
@@ -56,6 +56,12 @@ buildPythonPackage rec {
       url = "https://0xacab.org/jvoisin/mat2/-/commit/c9be50f968212b01f8d8ad85e59e19c3e67d8578.patch";
       sha256 = "0895dkv6575ps3drdfnli15cggx27n9irjx0axigrm4ql4ma0648";
     })
+    # fix white space error in the tests for exiftool, remove for next release
+    (fetchpatch {
+      name = "fix-tests-exiftool.patch";
+      url = "https://0xacab.org/jvoisin/mat2/-/commit/6df615281b2a649b85ff7670f6d87d3beed0b977.patch";
+      sha256 = "1gix63n0mzavnqjq5ll0v210z4vdz4f93aq03bfzlgifxcd9vl1x";
+    })
   ];
 
   postPatch = ''