diff --git a/pkgs/development/python-modules/pyannotate/default.nix b/pkgs/development/python-modules/pyannotate/default.nix
index d77b60248132..efb769051def 100644
--- a/pkgs/development/python-modules/pyannotate/default.nix
+++ b/pkgs/development/python-modules/pyannotate/default.nix
@@ -43,6 +43,7 @@ buildPythonPackage rec {
     ++ lib.optionals (pythonAtLeast "3.11") [
       # Tests are using lib2to3
       "pyannotate_tools/fixes/tests/test_annotate*.py"
+      "pyannotate_tools/annotations/tests/dundermain_test.py"
     ];
 
   meta = with lib; {