diff --git a/lib/cpus/aarch64/cortex_a57.S b/lib/cpus/aarch64/cortex_a57.S
index e777497..c2e11bd 100644
--- a/lib/cpus/aarch64/cortex_a57.S
+++ b/lib/cpus/aarch64/cortex_a57.S
@@ -57,7 +57,7 @@
 	bic	x0, x0, x1
 	msr	CPUECTLR_EL1, x0
 	isb
-	dsb	sy
+	dsb	ish
 	ret
 
 	/* ---------------------------------------------