diff --git a/lib/email-client/outlook-client.js b/lib/email-client/outlook-client.js
index 9df26f31..09b3ca15 100644
--- a/lib/email-client/outlook-client.js
+++ b/lib/email-client/outlook-client.js
@@ -2368,8 +2368,7 @@ class OutlookClient extends BaseClient {
         }
 
         // check if we have seen this message before or not (approximate estimation, not 100% exact)
-        messageData.seemsLikeNew =
-            messageData.messageSpecialUse !== '\\Sent' && !!(await this.connection.redis.pfadd(this.getSeenMessagesKey(), messageData.messageId));
+        messageData.seemsLikeNew = messageData.messageSpecialUse !== '\\Sent' && !!(await this.redis.pfadd(this.getSeenMessagesKey(), messageData.messageId));
 
         return messageData;
     }