diff --git a/src/gos/sys_make.mk b/src/gos/sys_make.mk
index 9e24f875..5ad2370b 100644
--- a/src/gos/sys_make.mk
+++ b/src/gos/sys_make.mk
@@ -4,5 +4,6 @@ GFXSRC +=   $(GFXLIB)/src/gos/chibios.c	\
 			$(GFXLIB)/src/gos/linux.c \
 			$(GFXLIB)/src/gos/osx.c \
 			$(GFXLIB)/src/gos/raw32.c \
-			$(GFXLIB)/src/gos/ecos.c
+			$(GFXLIB)/src/gos/ecos.c \
+			$(GFXLIB)/src/gos/rawrtos.c