diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e9a776a..a8c4c1ea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -124,8 +124,8 @@ if(WITH_MESALINK)
 endif()
 set(CMAKE_CPP_FLAGS "${CMAKE_CPP_FLAGS} -DBTHREAD_USE_FAST_PTHREAD_MUTEX -D__const__=__unused__ -D_GNU_SOURCE -DUSE_SYMBOLIZE -DNO_TCMALLOC -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DBRPC_REVISION=\\\"${BRPC_REVISION}\\\" -D__STRICT_ANSI__")
 set(CMAKE_CPP_FLAGS "${CMAKE_CPP_FLAGS} ${DEBUG_SYMBOL} ${THRIFT_CPP_FLAG}")
-set(CMAKE_CXX_FLAGS "${CMAKE_CPP_FLAGS} -O2 -pipe -Wall -W -fPIC -fstrict-aliasing -Wno-invalid-offsetof -Wno-unused-parameter -fno-omit-frame-pointer")
-set(CMAKE_C_FLAGS "${CMAKE_CPP_FLAGS} -O2 -pipe -Wall -W -fPIC -fstrict-aliasing -Wno-unused-parameter -fno-omit-frame-pointer")
+set(CMAKE_CXX_FLAGS "${CMAKE_CPP_FLAGS} -O2 -pipe -w -fPIC -fstrict-aliasing -Wno-invalid-offsetof -Wno-unused-parameter -fno-omit-frame-pointer")
+set(CMAKE_C_FLAGS "${CMAKE_CPP_FLAGS} -O2 -pipe -w -fPIC -fstrict-aliasing -Wno-unused-parameter -fno-omit-frame-pointer")
 
 macro(use_cxx11)
 if(CMAKE_VERSION VERSION_LESS "3.1.3")