diff --git a/src/equicordplugins/messageLoggerEnhanced/utils/LimitedMap.ts b/src/equicordplugins/messageLoggerEnhanced/utils/LimitedMap.ts
index 38ee9e09..f8f2aa48 100644
--- a/src/equicordplugins/messageLoggerEnhanced/utils/LimitedMap.ts
+++ b/src/equicordplugins/messageLoggerEnhanced/utils/LimitedMap.ts
@@ -25,7 +25,10 @@ export class LimitedMap<K, V> {
     set(key: K, value: V) {
         if (settings.store.cacheLimit > 0 && this.map.size >= settings.store.cacheLimit) {
             // delete the first entry
-            this.map.delete(this.map.keys().next().value);
+            const firstKey = this.map.keys().next().value;
+            if (firstKey !== undefined) {
+                this.map.delete(firstKey);
+            }
         }
         this.map.set(key, value);
     }