diff --git a/stdlib/@python2/types.pyi b/stdlib/@python2/types.pyi
index 72b9321a860f..0feee4530586 100644
--- a/stdlib/@python2/types.pyi
+++ b/stdlib/@python2/types.pyi
@@ -148,7 +148,7 @@ class FrameType:
     f_exc_traceback: None
     f_globals: Dict[str, Any]
     f_lasti: int
-    f_lineno: int
+    f_lineno: int | None
     f_locals: Dict[str, Any]
     f_restricted: bool
     f_trace: Callable[[], None]
diff --git a/stdlib/types.pyi b/stdlib/types.pyi
index c0fe8bc3eabc..24c1f9fdb172 100644
--- a/stdlib/types.pyi
+++ b/stdlib/types.pyi
@@ -353,7 +353,7 @@ class FrameType:
     f_code: CodeType
     f_globals: dict[str, Any]
     f_lasti: int
-    f_lineno: int
+    f_lineno: int | None
     f_locals: dict[str, Any]
     f_trace: Callable[[FrameType, str, Any], Any] | None
     if sys.version_info >= (3, 7):