diff --git a/lite/core/mir/memory_optimize_pass.cc b/lite/core/mir/memory_optimize_pass.cc
index eddbebb545351fa6b1820682af487bb7b04e8bb3..3817d0049c9e302b5b39aae6bca96dff2180bd73 100644
--- a/lite/core/mir/memory_optimize_pass.cc
+++ b/lite/core/mir/memory_optimize_pass.cc
@@ -47,7 +47,6 @@ void MemoryOptimizePass::CollectLifeCycleByDevice(
                                             "merge_lod_tensor",
                                             "equal",
                                             "lod_reset",
-                                            "concat",
                                             "yolo_box",
                                             "subgraph",
                                             "feed",