diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2dc95f972877..5c27ff5902e0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -362,6 +362,7 @@ if(${VELOX_ENABLE_GPU})
 endif()
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g ")
 
 set(BOOST_INCLUDE_LIBRARIES
     atomic