diff --git a/src/zm_monitor.cpp b/src/zm_monitor.cpp
index d9b07e40f..e8e14b3c4 100644
--- a/src/zm_monitor.cpp
+++ b/src/zm_monitor.cpp
@@ -1543,7 +1543,7 @@ bool Monitor::Analyse() {
         }
         if ( score ) {
           if ( (state == IDLE || state == TAPE || state == PREALARM ) ) {
-            if ( Event::PreAlarmCount() > alarm_frame_count ) {
+            if ( (!pre_event_count) || (Event::PreAlarmCount() >= alarm_frame_count) ) {
               Info("%s: %03d - Gone into alarm state %u > %u",
                   name, image_count, Event::PreAlarmCount(), alarm_frame_count);
               shared_data->state = state = ALARM;