diff --git a/src/mod/Makefile b/src/mod/Makefile
index 6c9cdcb6..6680a2e0 100644
--- a/src/mod/Makefile
+++ b/src/mod/Makefile
@@ -13,10 +13,12 @@ install:
 	$(foreach dir, $(PROJECTS), $(MAKE) -C $(dir) modules_install;)
 	/sbin/depmod
 
+distclean maintainer-clean: clean
+
 # This target is needed to generate the upstream tarball.
 # It's not a standard Kbuild target.
 distdir:
 	mkdir -p ${distdir}
 	cp -r * ${distdir}
 
-.PHONY: $(PROJECTS) $(OTHER_TARGETS) install dist
+.PHONY: $(PROJECTS) $(OTHER_TARGETS) install dist distclean maintainer-clean
diff --git a/src/usr/iptables/Makefile b/src/usr/iptables/Makefile
index d40534d2..c2b28f09 100644
--- a/src/usr/iptables/Makefile
+++ b/src/usr/iptables/Makefile
@@ -37,7 +37,7 @@ lib%.so: lib%.o
 	${CC} -shared -fPIC ${LDFLAGS} -o $@ $^;
 lib%.o: lib%.c
 	${CC} ${DEFAULT_CFLAGS} ${CPPFLAGS} ${CFLAGS} -D_INIT=lib$*_init -fPIC -c -o $@ $<;
-clean distclean:
+clean distclean maintainer-clean:
 	rm -f *.so
 distdir:
 	mkdir -p ${distdir}