diff --git a/pkgs/tools/misc/diffoscope/default.nix b/pkgs/tools/misc/diffoscope/default.nix
index 6d97581af26f..c5ca89f54841 100644
--- a/pkgs/tools/misc/diffoscope/default.nix
+++ b/pkgs/tools/misc/diffoscope/default.nix
@@ -282,13 +282,7 @@ python.pkgs.buildPythonApplication rec {
     "test_libmix_differences"
   ];
 
-  disabledTestPaths = [
-    # fails due to https://github.com/NixOS/nixpkgs/issues/256896
-    # should be removed once that issue is resolved in coreboot or diffoscope
-    "tests/comparators/test_cbfs.py"
-  ]
-  # Flaky tests on Darwin
-  ++ lib.optionals stdenv.isDarwin [
+  disabledTestPaths = lib.optionals stdenv.isDarwin [
     "tests/comparators/test_git.py"
     "tests/comparators/test_java.py"
     "tests/comparators/test_uimage.py"