diff --git a/source/tutorial/resync-replica-set-member.txt b/source/tutorial/resync-replica-set-member.txt
index b618a870954..654be1e7810 100644
--- a/source/tutorial/resync-replica-set-member.txt
+++ b/source/tutorial/resync-replica-set-member.txt
@@ -72,7 +72,7 @@ Resync by Copying All Datafiles from Another Member
 ---------------------------------------------------
 
 This approach uses a copy of the data files from an existing member of
-the replica set, or a back of the data files to "seed" the stale member.
+the replica set, or a backup of the data files to "seed" the stale member.
 
 The copy or backup of the data files **must** be sufficiently recent
 to allow the new member to catch up with the :term:`oplog`, otherwise