diff --git a/comfy_extras/nodes_logic.py b/comfy_extras/nodes_logic.py
index 8dde4eb1e..ee9746526 100644
--- a/comfy_extras/nodes_logic.py
+++ b/comfy_extras/nodes_logic.py
@@ -153,12 +153,6 @@ class ComboOutputTestNode(io.ComfyNode):
             outputs=[io.Combo.Output(), io.Combo.Output()],
         )
 
-    @classmethod
-    def validate_inputs(cls, combo: io.Combo.Type) -> bool:
-        if combo not in ["option1", "option2", "option3"]:
-            return "Invalid combo: {}".format(combo)
-        return True
-
     @classmethod
     def execute(cls, combo: io.Combo.Type, combo2: io.Combo.Type) -> io.NodeOutput:
         return io.NodeOutput(combo, combo2)