diff --git a/pyiron_workflow/node.py b/pyiron_workflow/node.py
index 07a2d7d3..903a9832 100644
--- a/pyiron_workflow/node.py
+++ b/pyiron_workflow/node.py
@@ -412,7 +412,7 @@ def run_args(self) -> tuple[tuple, dict]:
 
     @property
     @abstractmethod
-    def _run_args(self, *args, **kwargs) -> Any:
+    def _run_args(self) -> tuple[tuple, dict]:
         pass
 
     def run(