diff --git a/pkgs/development/python-modules/diskcache/default.nix b/pkgs/development/python-modules/diskcache/default.nix
index cf3f7b514b1f..6a8d1e59cea7 100644
--- a/pkgs/development/python-modules/diskcache/default.nix
+++ b/pkgs/development/python-modules/diskcache/default.nix
@@ -43,6 +43,8 @@ buildPythonPackage rec {
     "test_incr_version"
     "test_get_or_set"
     "test_get_many"
+    # see https://github.com/grantjenks/python-diskcache/issues/260
+    "test_cache_write_unpicklable_object"
   ];
 
   pythonImportsCheck = [