diff --git a/build/fbcode_builder/CMake/FBCompilerSettingsUnix.cmake b/build/fbcode_builder/CMake/FBCompilerSettingsUnix.cmake
index c095ec840..c26ce78b1 100644
--- a/build/fbcode_builder/CMake/FBCompilerSettingsUnix.cmake
+++ b/build/fbcode_builder/CMake/FBCompilerSettingsUnix.cmake
@@ -6,6 +6,4 @@
 # to these shared compiler settings in order to avoid accidentally
 # breaking a build in another project!
 
-set(CMAKE_CXX_FLAGS_COMMON "-g -Wall -Wextra -Wno-deprecated -Wno-deprecated-declarations")
-set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${CMAKE_CXX_FLAGS_COMMON}")
-set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${CMAKE_CXX_FLAGS_COMMON} -O3")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -Wall -Wextra -Wno-deprecated -Wno-deprecated-declarations")