diff --git a/shell/src/main/cpp/CMakeLists.txt b/shell/src/main/cpp/CMakeLists.txt
index 5ed9dca..f2e26c2 100644
--- a/shell/src/main/cpp/CMakeLists.txt
+++ b/shell/src/main/cpp/CMakeLists.txt
@@ -56,7 +56,7 @@ if(${CMAKE_BUILD_TYPE} STREQUAL "Debug")
     add_definitions(-DDEBUG)
     message(WARNING "!!!WARNNING:opened log!!!")
 else()
-    set(OPTIMIZATION_LEVEL "-Oz")
+    set(OPTIMIZATION_LEVEL "")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden ${OPTIMIZATION_LEVEL}")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden ${OPTIMIZATION_LEVEL}")
     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--exclude-libs,ALL")