diff --git a/extensions/lang-english/locale/flarum-tags.yml b/extensions/lang-english/locale/flarum-tags.yml
index d21809ca7..701f003b9 100644
--- a/extensions/lang-english/locale/flarum-tags.yml
+++ b/extensions/lang-english/locale/flarum-tags.yml
@@ -84,6 +84,13 @@ flarum-tags:
       removed_tags_text: "{username} removed the {tagsRemoved}."
       tags_text: "{tags} tag|{tags} tags"
 
+  # Translations in this namespace are used in messages output by the API.
+  api:
+
+    # These translations are used in messages regarding the number of tags assigned to a discussion.
+    primary_tag_count_text: number of primary tags
+    secondary_tag_count_text: number of secondary tags
+
   # Translations in this namespace are used by the forum and admin interfaces.
   lib: