diff --git a/include/image-commands.mk b/include/image-commands.mk
index 6b4bc4945c..492e6933f1 100644
--- a/include/image-commands.mk
+++ b/include/image-commands.mk
@@ -218,6 +218,11 @@ define Build/copy-file
 	cat "$(1)" > "$@"
 endef
 
+define Build/edimax-header
+	$(STAGING_DIR_HOST)/bin/mkedimaximg -i $@ -o $@.new $(1)
+	@mv $@.new $@
+endef
+
 define Build/elecom-product-header
 	$(eval product=$(word 1,$(1)))
 	$(eval fw=$(if $(word 2,$(1)),$(word 2,$(1)),$@))
diff --git a/target/linux/ramips/image/Makefile b/target/linux/ramips/image/Makefile
index d48b220231..0992d6ba9f 100644
--- a/target/linux/ramips/image/Makefile
+++ b/target/linux/ramips/image/Makefile
@@ -28,11 +28,6 @@ LOADER_FLASH_START := $(ldrflashstart-y)
 
 KERNEL_DTB = kernel-bin | append-dtb | lzma
 
-define Build/edimax-header
-	$(STAGING_DIR_HOST)/bin/mkedimaximg -i $@ -o $@.new $(1)
-	@mv $@.new $@
-endef
-
 define Build/jcg-header
 	$(STAGING_DIR_HOST)/bin/jcgimage -v $(1) \
 		$(if $(JCG_MAXSIZE), -m $$(($(subst k, * 1024,$(JCG_MAXSIZE)))),) \