diff --git a/kernel/mips64/sum.S b/kernel/mips64/sum.S
index bc9541c48..725346ff6 100644
--- a/kernel/mips64/sum.S
+++ b/kernel/mips64/sum.S
@@ -73,10 +73,10 @@
 	MTC	$0,  s1
 
 	MTC	$0,  s2
+	blez	INCX, .L999
 	dsll	INCX, INCX, BASE_SHIFT
 
 	blez	N, .L999
-	blez	INCX, .L999
 	li	TEMP, SIZE
 
 	bne	INCX, TEMP, .L20