diff --git a/src/TSMapEditor/Models/Trigger.cs b/src/TSMapEditor/Models/Trigger.cs
index fe261003a..b502fd30d 100644
--- a/src/TSMapEditor/Models/Trigger.cs
+++ b/src/TSMapEditor/Models/Trigger.cs
@@ -2,6 +2,7 @@
 using Rampastring.Tools;
 using System;
 using System.Collections.Generic;
+using TSMapEditor.CCEngine;
 using TSMapEditor.Misc;
 using TSMapEditor.Models.Enums;
 
@@ -179,12 +180,12 @@ public void ParseConditions(string data, EditorConfig editorConfig)
             for (int i = 0; i < eventCount; i++)
             {
                 int conditionIndex = Conversions.IntFromString(dataArray[startIndex], -1);
-                if (conditionIndex >= editorConfig.TriggerEventTypes.Count)
+                if (!editorConfig.TriggerEventTypes.TryGetValue(conditionIndex, out TriggerEventType triggerEventType))
                 {
                     throw new INIConfigException("The map contains a trigger event that is not defined in the editor's config. To prevent data loss, the map cannot be loaded. Event index: " + conditionIndex);
                 }
 
-                bool usesP3 = editorConfig.TriggerEventTypes[conditionIndex].UsesP3;
+                bool usesP3 = triggerEventType.UsesP3;
 
                 var triggerEvent = TriggerCondition.ParseFromArray(dataArray, startIndex, usesP3);
                 if (triggerEvent == null)