diff --git a/python_files/unittestadapter/pvsc_utils.py b/python_files/unittestadapter/pvsc_utils.py
index 3e305e7ec9bb..399b4ffff1d1 100644
--- a/python_files/unittestadapter/pvsc_utils.py
+++ b/python_files/unittestadapter/pvsc_utils.py
@@ -93,7 +93,7 @@ class CoveragePayloadDict(Dict):
 
     coverage: bool
     cwd: str
-    result: dict[str, FileCoverageInfo] | None
+    result: Optional[dict[str, FileCoverageInfo]]
     error: str | None  # Currently unused need to check