diff --git a/database/migrations/2021_08_08_125817_default_route.php b/database/migrations/2021_08_08_125817_default_route.php
index f84119e..ee598a7 100644
--- a/database/migrations/2021_08_08_125817_default_route.php
+++ b/database/migrations/2021_08_08_125817_default_route.php
@@ -27,7 +27,7 @@ class DefaultRoute extends Migration
      */
     public function down()
     {
-		DB::statement("DROP UNIQUE INDEX default_zone");
+		DB::statement("DROP INDEX default_zone");
 
 		Schema::table('system_zone', function (Blueprint $table) {
 			$table->dropColumn('default');
diff --git a/database/migrations/2021_08_15_134329_default_zones.php b/database/migrations/2021_08_15_134329_default_zones.php
index 1d03a5a..a6d18f0 100644
--- a/database/migrations/2021_08_15_134329_default_zones.php
+++ b/database/migrations/2021_08_15_134329_default_zones.php
@@ -19,8 +19,9 @@ class DefaultZones extends Migration
 
 		Schema::table('zones', function (Blueprint $table) {
 			$table->boolean('default')->default(FALSE);
-			$table->unique(['zone_id','default']);
 		});
+
+		DB::statement('CREATE UNIQUE INDEX default_zones ON zones (zone_id) WHERE "default" = true');
     }
 
     /**
@@ -30,12 +31,13 @@ class DefaultZones extends Migration
      */
     public function down()
     {
+		DB::statement("DROP INDEX default_zones");
+
 		Schema::table('zones', function (Blueprint $table) {
-			$table->dropUnique(['zone_id','default']);
 			$table->dropColumn('default');
 		});
 
-		Schema::table('zones', function (Blueprint $table) {
+		Schema::table('domains', function (Blueprint $table) {
 			$table->boolean('default')->default(FALSE);
 		});
     }