diff --git a/execution.py b/execution.py
index 864d9943f..ca1d89b84 100644
--- a/execution.py
+++ b/execution.py
@@ -247,7 +247,7 @@ def validate_inputs(prompt, item):
 
             if isinstance(type_input, list):
                 if val not in type_input:
-                    # bypass validation on special output
+                    # bypass validation on special input
                     if not val.endswith(" [OUT]") and not val.endswith(" [TEMP]"):
                         return (False, "Value not in list. {}, {}: {} not in {}".format(class_type, x, val, type_input))
     return (True, "")