diff --git a/src/lightning/pytorch/utilities/model_helpers.py b/src/lightning/pytorch/utilities/model_helpers.py
index 44591aa7f4dc1..daf1c400c03df 100644
--- a/src/lightning/pytorch/utilities/model_helpers.py
+++ b/src/lightning/pytorch/utilities/model_helpers.py
@@ -104,7 +104,7 @@ def _check_mixed_imports(instance: object) -> None:
 _R_co = TypeVar("_R_co", covariant=True)  # return type of the decorated method
 
 
-class _restricted_classmethod_impl(Generic[_T, _P, _R_co]):
+class _restricted_classmethod_impl(Generic[_T, _R_co, _P]):
     """Drop-in replacement for @classmethod, but raises an exception when the decorated method is called on an instance
     instead of a class type."""