diff --git a/ge/graph/build/stream_graph_optimizer.cc b/ge/graph/build/stream_graph_optimizer.cc
index 81df74f7..9fa33480 100644
--- a/ge/graph/build/stream_graph_optimizer.cc
+++ b/ge/graph/build/stream_graph_optimizer.cc
@@ -133,8 +133,8 @@ Status StreamGraphOptimizer::OptimizeStreamedSubGraph(const ComputeGraphPtr &com
           return FAILED;
         }
         run_context.stream = run_context.graphStreamList[stream_id];
-	      std::string batch_label;
-	      (void)AttrUtils::GetStr(subgraph, ATTR_NAME_BATCH_LABEL, batch_label);
+        std::string batch_label;
+        (void)AttrUtils::GetStr(subgraph, ATTR_NAME_BATCH_LABEL, batch_label);
         GELOGD("Subgraph has same stream id, subgraph: %s, engine_name: %s, stream_id: %ld, rtstream: %lu, "
 	       "batch_label: %s", subgraph->GetName().c_str(), engine_name.c_str(), stream_id,
                static_cast<uint64_t>(reinterpret_cast<uintptr_t>(run_context.stream)), batch_label.c_str());