Fix IMAGE_EXTRA for rpm images

image.mk

@@ -15,7 +15,7 @@ VERSION := $(shell basename `pwd`)
 IMAGE := $(IMAGE_PREFIX)$(VERSION):$(VARIANT)
 
 ifeq ($(VARIANT),x86_64)
-IMAGE_EXTRA := $(IMAGE_PREFIX)$(DIST):latest
+IMAGE_EXTRA := $(IMAGE_PREFIX)$(VERSION):latest
 else
 IMAGE_EXTRA :=
 endif