diff --git a/kernel/power/gemm_beta.S b/kernel/power/gemm_beta.S
index 62d7761ec..7acc05b4d 100644
--- a/kernel/power/gemm_beta.S
+++ b/kernel/power/gemm_beta.S
@@ -129,7 +129,7 @@ LL(12):
 	STFD	f0,  14 * SIZE(CO1)
 	STFD	f0,  15 * SIZE(CO1)
 
-	dcbst	PRE, CO1
+	dcbtst	PRE, CO1
 	addi	CO1, CO1,  16 * SIZE
 	bdnz	LL(12)
 	.align 4