diff --git a/target/linux/ramips/mt7621/target.mk b/target/linux/ramips/mt7621/target.mk
index c1c39a10180d1b1d09b487f59077556731461305..7e175435b3eb51f589c55ef937092cc67e3d560d 100644
--- a/target/linux/ramips/mt7621/target.mk
+++ b/target/linux/ramips/mt7621/target.mk
@@ -7,7 +7,6 @@ BOARDNAME:=MT7621 based boards
 FEATURES+=usb rtc
 CPU_TYPE:=1004kc
 CPU_SUBTYPE:=dsp
-CFLAGS:=-Os -pipe -mmt -mips32r2 -mtune=1004kc
 
 DEFAULT_PACKAGES += kmod-mt76