diff --git a/lib/dml/sqlsrv_native_moodle_database.php b/lib/dml/sqlsrv_native_moodle_database.php
index 623d628dd5d..b80191c5161 100644
--- a/lib/dml/sqlsrv_native_moodle_database.php
+++ b/lib/dml/sqlsrv_native_moodle_database.php
@@ -182,7 +182,13 @@ class sqlsrv_native_moodle_database extends moodle_database {
         sqlsrv_configure("LogSeverity", SQLSRV_LOG_SEVERITY_ERROR);
 
         $this->store_settings($dbhost, $dbuser, $dbpass, $dbname, $prefix, $dboptions);
-        $this->sqlsrv = sqlsrv_connect($this->dbhost, array
+
+        $dbhost = $this->dbhost;
+        if (!empty($dboptions['dbport'])) {
+            $dbhost .= ',' . $dboptions['dbport'];
+        }
+
+        $this->sqlsrv = sqlsrv_connect($dbhost, array
          (
           'UID' => $this->dbuser,
           'PWD' => $this->dbpass,