diff --git a/database/migrations/2020_09_07_090635_create_admin_settings_table.php b/database/migrations/2020_09_07_090635_create_admin_settings_table.php
index 2c5d7f854..1a050dc18 100644
--- a/database/migrations/2020_09_07_090635_create_admin_settings_table.php
+++ b/database/migrations/2020_09_07_090635_create_admin_settings_table.php
@@ -23,7 +23,7 @@ public function config($key)
      */
     public function up()
     {
-        Schema::create($this->config('database.settings_table'), function (Blueprint $table) {
+        Schema::create($this->config('database.settings_table') ?: 'admin_settings', function (Blueprint $table) {
             $table->string('slug', 100)->primary();
             $table->longText('value');
             $table->timestamps();
@@ -37,6 +37,6 @@ public function up()
      */
     public function down()
     {
-        Schema::dropIfExists($this->config('database.settings_table'));
+        Schema::dropIfExists($this->config('database.settings_table') ?: 'admin_settings');
     }
 }
diff --git a/database/migrations/2020_09_22_015815_create_admin_extensions_table.php b/database/migrations/2020_09_22_015815_create_admin_extensions_table.php
index 2320010f9..830bf4bad 100644
--- a/database/migrations/2020_09_22_015815_create_admin_extensions_table.php
+++ b/database/migrations/2020_09_22_015815_create_admin_extensions_table.php
@@ -23,7 +23,7 @@ public function config($key)
      */
     public function up()
     {
-        Schema::create($this->config('database.extensions_table'), function (Blueprint $table) {
+        Schema::create($this->config('database.extensions_table') ?: 'admin_extensions', function (Blueprint $table) {
             $table->increments('id')->unsigned();
             $table->string('name', 100)->unique();
             $table->string('version', 20)->default('');
@@ -34,7 +34,7 @@ public function up()
             $table->engine = 'InnoDB';
         });
 
-        Schema::create($this->config('database.extension_histories_table'), function (Blueprint $table) {
+        Schema::create($this->config('database.extension_histories_table') ?: 'admin_extension_histories', function (Blueprint $table) {
             $table->bigIncrements('id')->unsigned();
             $table->string('name', 100);
             $table->tinyInteger('type')->default(1);
@@ -55,7 +55,7 @@ public function up()
      */
     public function down()
     {
-        Schema::dropIfExists($this->config('database.extensions_table'));
-        Schema::dropIfExists($this->config('database.extension_histories_table'));
+        Schema::dropIfExists($this->config('database.extensions_table') ?: 'admin_extensions');
+        Schema::dropIfExists($this->config('database.extension_histories_table') ?: 'admin_extension_histories');
     }
 }
diff --git a/src/Models/Extension.php b/src/Models/Extension.php
index 46253170c..12003b532 100644
--- a/src/Models/Extension.php
+++ b/src/Models/Extension.php
@@ -18,7 +18,7 @@ public function __construct(array $attributes = [])
 
         $this->setConnection($connection);
 
-        $this->setTable(config('admin.database.extensions_table'));
+        $this->setTable(config('admin.database.extensions_table') ?: 'admin_extensions');
 
         parent::__construct($attributes);
     }
diff --git a/src/Models/ExtensionHistory.php b/src/Models/ExtensionHistory.php
index c0ab0841d..a23ee44ff 100644
--- a/src/Models/ExtensionHistory.php
+++ b/src/Models/ExtensionHistory.php
@@ -14,7 +14,7 @@ public function __construct(array $attributes = [])
 
         $this->setConnection($connection);
 
-        $this->setTable(config('admin.database.extension_histories_table'));
+        $this->setTable(config('admin.database.extension_histories_table') ?: 'admin_extension_histories');
 
         parent::__construct($attributes);
     }
diff --git a/src/Models/Setting.php b/src/Models/Setting.php
index 53253cee5..2d5816ff3 100644
--- a/src/Models/Setting.php
+++ b/src/Models/Setting.php
@@ -16,7 +16,7 @@ public function __construct(array $attributes = [])
 
         $this->setConnection($connection);
 
-        $this->setTable(config('admin.database.settings_table'));
+        $this->setTable(config('admin.database.settings_table') ?: 'admin_settings');
 
         parent::__construct($attributes);
     }