remove coverage exclude: this is coverage's default
diff --git a/pyproject.toml b/pyproject.toml
index de210c3..6512eed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -167,7 +167,6 @@
 exclude_lines = [
     "@abc.abstractmethod",
     "@typing.overload",
-    "if typing.TYPE_CHECKING",
 ]
 
 [tool.coverage.html]