diff --git a/unittest/sql/engine/test_op_engine.cpp b/unittest/sql/engine/test_op_engine.cpp
index d83472baae..c69f31a786 100644
--- a/unittest/sql/engine/test_op_engine.cpp
+++ b/unittest/sql/engine/test_op_engine.cpp
@@ -79,7 +79,7 @@ void TestOpEngine::destory()
   ObIOManager::get_instance().destroy();
   ObKVGlobalCache::get_instance().destroy();
   ObClusterVersion::get_instance().destroy();
-  ObTmpFileManager::get_instance().destroy();
+  oceanbase::blocksstable::ObTmpFileManager::get_instance().destroy();
 
   // THE_IO_DEVICE->destroy();
 }