diff --git a/ydb/library/yql/providers/pq/provider/yql_pq_datasource_type_ann.cpp b/ydb/library/yql/providers/pq/provider/yql_pq_datasource_type_ann.cpp
index 988cc73bea76..ad204f6a365a 100644
--- a/ydb/library/yql/providers/pq/provider/yql_pq_datasource_type_ann.cpp
+++ b/ydb/library/yql/providers/pq/provider/yql_pq_datasource_type_ann.cpp
@@ -132,7 +132,7 @@ class TPqDataSourceTypeAnnotationTransformer : public TVisitorTransformerBase {
     }
 
     TStatus HandleDqTopicSource(TExprBase input, TExprContext& ctx) {
-        if (!EnsureArgsCount(input.Ref(), 6, ctx)) {
+        if (!EnsureArgsCount(input.Ref(), 7, ctx)) {
             return TStatus::Error;
         }