diff --git a/lib/dml/mssql_native_moodle_database.php b/lib/dml/mssql_native_moodle_database.php
index e1ea067c5e9..63f2470b1cc 100644
--- a/lib/dml/mssql_native_moodle_database.php
+++ b/lib/dml/mssql_native_moodle_database.php
@@ -625,8 +625,8 @@ class mssql_native_moodle_database extends moodle_database {
             return $sql;
         }
         // ok, we have verified sql statement with ? and correct number of params
-        $parts = explode('?', $sql);
-        $return = array_shift($parts);
+        $parts = array_reverse(explode('?', $sql));
+        $return = array_pop($parts);
         foreach ($params as $param) {
             if (is_bool($param)) {
                 $return .= (int)$param;
@@ -651,7 +651,7 @@ class mssql_native_moodle_database extends moodle_database {
                 $return .= "N'$param'";
             }
 
-            $return .= array_shift($parts);
+            $return .= array_pop($parts);
         }
         return $return;
     }