diff --git a/10.md b/10.md
index 5b19fbd3..a434ea05 100644
--- a/10.md
+++ b/10.md
@@ -33,7 +33,7 @@ Where:
 
  * Many "e" tags: `["e", <root-id>]` `["e", <mention-id>]`, ..., `["e", <reply-id>]`<br>
 There may be any number of `<mention-ids>`.  These are the ids of events which may, or may not be in the reply chain.
-They are citings from this event.  `root-id` and `reply-id` are as above.
+They are citing from this event.  `root-id` and `reply-id` are as above.
 
 >This scheme is deprecated because it creates ambiguities that are difficult, or impossible to resolve when an event references another but is not a reply.