diff --git a/pkg/query-service/model/v3/v3.go b/pkg/query-service/model/v3/v3.go
index d2f8f45fa5..e323f7e47c 100644
--- a/pkg/query-service/model/v3/v3.go
+++ b/pkg/query-service/model/v3/v3.go
@@ -293,7 +293,7 @@ func (a AttributeKey) Validate() error {
 
 	if a.IsColumn {
 		switch a.Type {
-		case AttributeKeyTypeResource, AttributeKeyTypeTag:
+		case AttributeKeyTypeResource, AttributeKeyTypeTag, AttributeKeyTypeUnspecified:
 			break
 		default:
 			return fmt.Errorf("invalid attribute type: %s", a.Type)