diff --git a/libs/langchain/tests/unit_tests/schema/runnable/test_locals.py b/libs/langchain/tests/unit_tests/schema/runnable/test_locals.py
index dce548fc69f..8f8755a9644 100644
--- a/libs/langchain/tests/unit_tests/schema/runnable/test_locals.py
+++ b/libs/langchain/tests/unit_tests/schema/runnable/test_locals.py
@@ -28,7 +28,7 @@ def test_missing_config() -> None:
         PutLocalVar("input").invoke("foo")
 
     with pytest.raises(ValueError):
-        GetLocalVar("input").invoke("foo")
+        GetLocalVar[str, str]("input").invoke("foo")
 
 
 def test_get_missing_var_invoke() -> None: