diff --git a/buildsys.mk.in b/buildsys.mk.in
index abfafb0..8752e99 100644
--- a/buildsys.mk.in
+++ b/buildsys.mk.in
@@ -905,7 +905,7 @@ clean:
 		${DIR_LEAVE}; \
 	done
 
-	for i in "" ${DEPS} ${OBJS} ${OBJS_EXTRA} ${LIB_OBJS} ${LIB_OBJS_EXTRA} ${PLUGIN_OBJS} ${PROG} ${PROG_NOINST} ${SHARED_LIB} ${SHARED_LIB_NOINST} ${STATIC_LIB} ${STATIC_LIB_NOINST} ${STATIC_PIC_LIB} ${STATIC_PIC_LIB_NOINST} ${PLUGIN} ${PLUGIN_NOINST} ${CLEAN_LIB} ${MO_FILES} ${CLEAN}; do \
+	for i in "" ${DEPS} ${OBJS} ${OBJS_EXTRA} ${LIB_OBJS} ${LIB_OBJS_EXTRA} ${MORPHOS_LIB_OBJS} ${MORPHOS_LIB_OBJS_EXTRA} ${PLUGIN_OBJS} ${PROG} ${PROG_NOINST} ${SHARED_LIB} ${SHARED_LIB_NOINST} ${STATIC_LIB} ${STATIC_LIB_NOINST} ${STATIC_PIC_LIB} ${STATIC_PIC_LIB_NOINST} ${PLUGIN} ${PLUGIN_NOINST} ${CLEAN_LIB} ${MO_FILES} ${CLEAN}; do \
 		test x"$$i" = x"" && continue; \
 		if test -f $$i -o -d $$i; then \
 			if rm -fr $$i; then \