diff --git a/src/views/newMap/display/exam/examPanel.vue b/src/views/newMap/display/exam/examPanel.vue
index 1ebf7174d..cf21fe2f8 100644
--- a/src/views/newMap/display/exam/examPanel.vue
+++ b/src/views/newMap/display/exam/examPanel.vue
@@ -93,6 +93,7 @@ export default {
     beforeDestroy() {
         this.$store.dispatch('trainingNew/setExamSwitch', false);
         if (this.examInterval) { clearInterval(this.examInterval); }
+        EventBus.$off('trainExamSubmit');
     },
     mounted() {
         EventBus.$on('trainExamSubmit', (data) => {