diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index dd49583bf4b..45ff52be352 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -7,7 +7,6 @@ include ./common-tp-link.mk
 
 DEFAULT_SOC := mt7621
 
-KERNEL_DTB += -d21
 DEVICE_VARS += ELECOM_HWNAME LINKSYS_HWNAME
 
 ifdef CONFIG_LINUX_5_10