diff --git a/target/linux/ramips/image/Makefile b/target/linux/ramips/image/Makefile
index 2af6d68547..39da5e09c0 100644
--- a/target/linux/ramips/image/Makefile
+++ b/target/linux/ramips/image/Makefile
@@ -83,6 +83,15 @@ define Build/senao-header
 	mv $@.new $@
 endef
 
+define Build/seama
+	$(STAGING_DIR_HOST)/bin/seama -i $@ $(1)
+	mv $@.seama $@
+endef
+
+define Build/seama-seal
+	$(call Build/seama,-s $@.seama $(1))
+endef
+
 #
 # The real magic happens inside these templates
 #
diff --git a/target/linux/ramips/image/mt7620.mk b/target/linux/ramips/image/mt7620.mk
index 9ccd3d9833..003fc70210 100644
--- a/target/linux/ramips/image/mt7620.mk
+++ b/target/linux/ramips/image/mt7620.mk
@@ -37,15 +37,6 @@ define Build/elecom-header
 	$(STAGING_DIR_HOST)/bin/tar -cf $@ -C $(KDIR) v_0.0.0.bin v_0.0.0.md5
 endef
 
-define Build/seama
-	$(STAGING_DIR_HOST)/bin/seama -i $@ $(1)
-	mv $@.seama $@
-endef
-
-define Build/seama-seal
-	$(call Build/seama,-s $@.seama $(1))
-endef
-
 define Device/ArcherC20i
   DTS := ArcherC20i
   KERNEL := $(KERNEL_DTB)
diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 47778c4636..769b86b81b 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -2,15 +2,6 @@
 # MT7621 Profiles
 #
 
-define Build/seama
-	$(STAGING_DIR_HOST)/bin/seama -i $@ $(1)
-	mv $@.seama $@
-endef
-
-define Build/seama-seal
-	$(call Build/seama,-s $@.seama $(1))
-endef
-
 define Build/ubnt-erx-factory-image
 	if [ -e $(KDIR)/tmp/$(KERNEL_INITRAMFS_IMAGE) -a "$$(stat -c%s $@)" -lt "$(KERNEL_SIZE)" ]; then \
 		echo '21001:6' > $(1).compat; \