diff --git a/typing_extensions/src/typing_extensions.py b/typing_extensions/src/typing_extensions.py
index bd2ab337f..c959adbfe 100644
--- a/typing_extensions/src/typing_extensions.py
+++ b/typing_extensions/src/typing_extensions.py
@@ -43,6 +43,7 @@
     # One-off things.
     'Annotated',
     'assert_never',
+    'assert_type',
     'dataclass_transform',
     'final',
     'get_args',