diff --git a/monitor.c b/monitor.c
index 1266ba06fb..2d3fb3f0ef 100644
--- a/monitor.c
+++ b/monitor.c
@@ -488,7 +488,7 @@ static const char *monitor_event_names[] = {
 };
 QEMU_BUILD_BUG_ON(ARRAY_SIZE(monitor_event_names) != QEVENT_MAX)
 
-MonitorEventState monitor_event_state[QEVENT_MAX];
+static MonitorEventState monitor_event_state[QEVENT_MAX];
 
 /*
  * Emits the event to every monitor instance