diff --git a/target/linux/bcm53xx/image/Makefile b/target/linux/bcm53xx/image/Makefile
index 2de5271bd8fdf014e4a8bc29b3ebc89f7c0779d1..0c53c853f31831bbac2c6155c08ee75559c3804c 100644
--- a/target/linux/bcm53xx/image/Makefile
+++ b/target/linux/bcm53xx/image/Makefile
@@ -80,7 +80,7 @@ define Device/netgear-r8000
 endef
 
 TARGET_DEVICES += \
-	asus-rt-ac68u asus-rt-n18u asus-rt-ac87u \
+	asus-rt-ac56u asus-rt-ac68u asus-rt-ac87u asus-rt-n18u \
 	netgear-r6250 netgear-r6300-v2 netgear-r8000 \
 	buffalo-wzr-1750dhp buffalo-wzr-600dhp2 buffalo-wzr-900dhp