diff --git a/api/features/serializers.py b/api/features/serializers.py
index fd4128c2bb81..b5f5748988e0 100644
--- a/api/features/serializers.py
+++ b/api/features/serializers.py
@@ -434,7 +434,7 @@ def save(self, **kwargs):
         try:
             return super().save(**kwargs)
         except django.core.exceptions.ValidationError as e:
-            raise serializers.ValidationError(e.message)
+            raise serializers.ValidationError(str(e))
 
     def validate_feature(self, feature):
         if self.instance and self.instance.feature_id != feature.id: