diff --git a/monitor.c b/monitor.c
index 662df7c..ae20927 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2709,12 +2709,15 @@
     uint64_t mcg_status = qdict_get_int(qdict, "mcg_status");
     uint64_t addr = qdict_get_int(qdict, "addr");
     uint64_t misc = qdict_get_int(qdict, "misc");
-    int broadcast = qdict_get_try_bool(qdict, "broadcast", 0);
+    int flags = MCE_INJECT_UNCOND_AO;
 
+    if (qdict_get_try_bool(qdict, "broadcast", 0)) {
+        flags |= MCE_INJECT_BROADCAST;
+    }
     for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu) {
         if (cenv->cpu_index == cpu_index) {
             cpu_x86_inject_mce(mon, cenv, bank, status, mcg_status, addr, misc,
-                               broadcast);
+                               flags);
             break;
         }
     }