diff --git a/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js b/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js
index 3ecf458a..d21ba9be 100644
--- a/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js
+++ b/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js
@@ -51,6 +51,15 @@ function getColumnInfo({
   if (numericPrecision && numericScale && isTypeNumeric(dataType)) {
     fullDataType = `${dataType}(${numericPrecision},${numericScale})`;
   }
+
+  if (defaultValue) {
+    defaultValue = defaultValue.trim();
+    while (defaultValue.startsWith('(') && defaultValue.endsWith(')')) {
+      defaultValue = defaultValue.slice(1, -1);
+      defaultValue = defaultValue.trim();
+    }
+  }
+
   return {
     columnName,
     dataType: fullDataType,
diff --git a/plugins/dbgate-plugin-mssql/src/frontend/MsSqlDumper.js b/plugins/dbgate-plugin-mssql/src/frontend/MsSqlDumper.js
index 052319d7..61f27cf9 100644
--- a/plugins/dbgate-plugin-mssql/src/frontend/MsSqlDumper.js
+++ b/plugins/dbgate-plugin-mssql/src/frontend/MsSqlDumper.js
@@ -128,14 +128,14 @@ class MsSqlDumper extends SqlDumper {
     if (testEqualColumns(oldcol, newcol, false, false)) {
       this.dropDefault(oldcol);
       if (oldcol.columnName != newcol.columnName) this.renameColumn(oldcol, newcol.columnName);
-      this.createDefault(oldcol);
+      this.createDefault(newcol);
     } else {
       this.dropDefault(oldcol);
       if (oldcol.columnName != newcol.columnName) this.renameColumn(oldcol, newcol.columnName);
       this.put('^alter ^table %f ^alter ^column %i ', oldcol, oldcol.columnName, newcol.columnName);
       this.columnDefinition(newcol, { includeDefault: false });
       this.endCommand();
-      this.createDefault(oldcol);
+      this.createDefault(newcol);
     }
   }