diff --git a/config/locales/server.en.yml b/config/locales/server.en.yml
index 0a3c7f5435e..629053bc7c6 100644
--- a/config/locales/server.en.yml
+++ b/config/locales/server.en.yml
@@ -819,6 +819,7 @@ en:
     email_in: "Allow users to post new topics via email"
     email_in_address: "The email address the users can post new topics to. None means users can't post globally."
     email_in_min_trust: "The minimum trust level an users needs to have to be allowed to post new topics via email"
+    email_in_category: "The category new emails are posted into"
     email_prefix: "The [label] used in the subject of emails. It will default to 'title' if not set"
 
     minimum_topics_similar: "How many topics need to exist in the database before similar topics are presented."