diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 3d640a8dec..d87af57a23 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -1568,6 +1568,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
             if (env->nr_dies < 2) {
                 break;
             }
+            /* fallthrough */
         case 4:
         case 0xb:
         case 0xd: