diff --git a/libretroBuildSystem/build/Makefile.common b/libretroBuildSystem/build/Makefile.common
index 0f78cad..ce0d75d 100644
--- a/libretroBuildSystem/build/Makefile.common
+++ b/libretroBuildSystem/build/Makefile.common
@@ -123,3 +123,6 @@ ifneq ($(STATIC_LINKING), 1)
 		$(LIBRETRO_COMM_DIR)/string/stdstring.c \
 		$(LIBRETRO_COMM_DIR)/vfs/vfs_implementation.c
 endif
+
+# Make sure C++ shares our include flags!
+CXXFLAGS += $(INCFLAGS)