fix typo in reference documentation

Change-Id: I5720635863f0d8a8ebfa4ddc51008bb93c1067b4

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/build/changelog/migration_13.rst b/doc/build/changelog/migration_13.rst
index 78ac21fb5..6e2913350 100644
--- a/doc/build/changelog/migration_13.rst
+++ b/doc/build/changelog/migration_13.rst
@@ -1672,7 +1672,7 @@ However, the current situation is that :class:`.Sequence` has been repurposed
 on SQL Server specifically in order to affect the "start" and "increment"
 parameters for the ``IDENTITY`` specification on a primary key column.  In order
 to make the transition towards normal sequences being available as well,
-using :class:.`.Sequence` will emit a deprecation warning throughout the
+using :class:`.Sequence` will emit a deprecation warning throughout the
 1.3 series.  In order to affect "start" and "increment", use the
 new ``mssql_identity_start`` and ``mssql_identity_increment`` parameters
 on :class:`_schema.Column`::