diff --git a/adminer/drivers/mssql.inc.php b/adminer/drivers/mssql.inc.php
index de733073..b94c4ca4 100644
--- a/adminer/drivers/mssql.inc.php
+++ b/adminer/drivers/mssql.inc.php
@@ -504,7 +504,7 @@ WHERE OBJECT_NAME(i.object_id) = " . q($table)
 			$alter[""] = $foreign;
 		}
 		foreach ($alter as $key => $val) {
-			if (!queries("ALTER TABLE " . idf_escape($name) . " $key" . implode(",", $val))) {
+			if (!queries("ALTER TABLE " . table($name) . " $key" . implode(",", $val))) {
 				return false;
 			}
 		}
diff --git a/changes.txt b/changes.txt
index c948de62..95eaa495 100644
--- a/changes.txt
+++ b/changes.txt
@@ -1,6 +1,7 @@
 Adminer 4.16.1-dev:
 Hide index column options by default
 SQLite: Show all supported pragmas in Variables
+MS SQL: Allow altering table in non-default schema (bug #405)
 Editor: PDO: Select value of foreign key in edit (bug #847)
 
 Adminer 4.16.0 (released 2025-02-20):