diff --git a/CMakeLists.txt b/CMakeLists.txt
index a22e017107..1eac2b2cd3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -375,8 +375,10 @@ else()
 	if(NOT CG_FOUND)
 		message("CG not found, Building without")
 		add_definitions(-DHAVE_CG=0)
+		set(HAVE_CG 0)
 	else()
 		add_definitions(-DHAVE_CG=1)
+		set(HAVE_CG 1)
 	endif()
 endif()