diff --git a/package/xenomai/xenomai.mk b/package/xenomai/xenomai.mk
index 740a40b96..ccbae3586 100644
--- a/package/xenomai/xenomai.mk
+++ b/package/xenomai/xenomai.mk
@@ -99,7 +99,7 @@ XENOMAI_DEPENDENCIES += udev
 define XENOMAI_INSTALL_UDEV_RULES
 	if test -d $(TARGET_DIR)/etc/udev/rules.d ; then \
 		for f in $(@D)/ksrc/nucleus/udev/*.rules ; do \
-			cp $$f $(TARGET_DIR)/etc/udev/rules.d/ ; \
+			cp $$f $(TARGET_DIR)/etc/udev/rules.d/ || exit 1 ; \
 		done ; \
 	fi;
 endef