diff --git a/kernel/mips64/sum.S b/kernel/mips64/sum.S
index deb918d6a..18e5aaca9 100644
--- a/kernel/mips64/sum.S
+++ b/kernel/mips64/sum.S
@@ -78,7 +78,7 @@
 	blez	N, .L999
 	li	TEMP, SIZE
 
-	bez	INCX, .L01
+	beqz	INCX, .L01
 	bne	INCX, TEMP, .L20
 .L01:	dsra	I, N, 3