diff --git a/client/ayon_core/tools/creator/widgets.py b/client/ayon_core/tools/creator/widgets.py
index 53a2ee1080..96ce899881 100644
--- a/client/ayon_core/tools/creator/widgets.py
+++ b/client/ayon_core/tools/creator/widgets.py
@@ -104,7 +104,7 @@ def __init__(self):
 
     def validate(self, text, pos):
         results = super(ProductNameValidator, self).validate(text, pos)
-        if results[0] == self.Invalid:
+        if results[0] == RegularExpressionValidatorClass.Invalid:
             self.invalid.emit(self.invalid_chars(text))
         return results