diff --git a/package/multipath-tools/multipath-tools.mk b/package/multipath-tools/multipath-tools.mk
index d5cca7ba57..7fe9033a15 100644
--- a/package/multipath-tools/multipath-tools.mk
+++ b/package/multipath-tools/multipath-tools.mk
@@ -9,7 +9,12 @@ MULTIPATH_TOOLS_SITE = $(call github,opensvc,multipath-tools,$(MULTIPATH_TOOLS_V
 MULTIPATH_TOOLS_LICENSE = LGPL-2.0
 MULTIPATH_TOOLS_LICENSE_FILES = COPYING
 MULTIPATH_TOOLS_DEPENDENCIES = lvm2 json-c readline udev liburcu libaio host-pkgconf
-MULTIPATH_TOOLS_MAKE_OPTS = LIB="lib" RUN="run" OPTFLAGS="" STACKPROT=""
+MULTIPATH_TOOLS_MAKE_OPTS = \
+	LIB="lib" \
+	RUN="run" \
+	OPTFLAGS="" \
+	STACKPROT="" \
+	WARNFLAGS=""
 
 ifeq ($(BR2_PACKAGE_SYSTEMD),y)
 MULTIPATH_TOOLS_DEPENDENCIES += systemd