diff --git a/target-arm/cpu64.c b/target-arm/cpu64.c
index 823c739f08..270bc2fec7 100644
--- a/target-arm/cpu64.c
+++ b/target-arm/cpu64.c
@@ -96,6 +96,7 @@ static void aarch64_a57_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
 
+    cpu->dtb_compatible = "arm,cortex-a57";
     set_feature(&cpu->env, ARM_FEATURE_V8);
     set_feature(&cpu->env, ARM_FEATURE_VFP4);
     set_feature(&cpu->env, ARM_FEATURE_NEON);