diff --git a/src/listener-rss-aggregator.ts b/src/listener-rss-aggregator.ts
index 703cf81..8ee5b3d 100644
--- a/src/listener-rss-aggregator.ts
+++ b/src/listener-rss-aggregator.ts
@@ -98,8 +98,8 @@ export class ListenerRssAggregator extends EventEmitter {
     return newListener;
   }
 
-  private removeOldListener(adr: string): void {
-    const oldListener = this.listenerMap.get(adr);
+  private removeOldListener(addr: string): void {
+    const oldListener = this.listenerMap.get(addr);
 
     if (!oldListener) return;
 
@@ -108,7 +108,7 @@ export class ListenerRssAggregator extends EventEmitter {
       .removeAllListeners("update")
       .removeAllListeners("newEntries")
       .removeAllListeners("error");
-    this.listenerMap.delete(adr);
+    this.listenerMap.delete(addr);
   }
 
   async registerListener(info: ListenerRss.Config) {
@@ -118,11 +118,11 @@ export class ListenerRssAggregator extends EventEmitter {
     await this.sqliteDb.insertListener(listener);
   }
 
-  async unregisterListener(adr: string): Promise<void> {
-    if (!this.listenerMap.has(adr)) return;
+  async unregisterListener(addr: string): Promise<void> {
+    if (!this.listenerMap.has(addr)) return;
 
-    this.removeOldListener(adr);
-    await this.sqliteDb.deleteListener(adr);
+    this.removeOldListener(addr);
+    await this.sqliteDb.deleteListener(addr);
   }
 
   async saveOverride(expectedConfig: ListenerRss.Config[]) {