1 files changed, 1 insertions, 1 deletions

diff --git a/draft-summermatter-set-union.xml b/draft-summermatter-set-union.xml
index 270bad2..d53ff3b 100644
--- a/draft-summermatter-set-union.xml
+++ b/draft-summermatter-set-union.xml
@@ -2754,7 +2754,7 @@ END FUNCTION
                           connection MUST be aborted.
                         </t>
                         <t>
-                          An other sanity check is to ensure that the "OFFSET" message field never
+                          Another sanity check is to ensure that the "OFFSET" message field never
                           is higher than the "IBF SIZE" field in the <em><xref target="messages_ibf" format="title" /></em>
                           message.
                         </t>