diff --git a/CMakeLists.txt b/CMakeLists.txt
index 98c208f07..f3253a69e 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -171,6 +171,7 @@ if(CMAKE_COMPILER_IS_GNUCC)
 		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
 	else()
 		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g")
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g")
 	endif()
 	if(WITH_SSE2)
 		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -msse2")