diff --git a/SetFlags.cmake b/SetFlags.cmake
index 162560c90..ded57e6d7 100644
--- a/SetFlags.cmake
+++ b/SetFlags.cmake
@@ -183,7 +183,7 @@ macro(set_exe_flags)
 		string(REPLACE "-w" "" CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE}")
 		string(REPLACE "-w" "" CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG}")
 		string(REPLACE "-w" "" CMAKE_C_FLAGS_DEBUG     "${CMAKE_C_FLAGS_DEBUG}")
-		add_flags_cxx("-Wall")
+		add_flags_cxx("-Wall -Wextra")
 	endif()
 
 endmacro()