diff --git a/Theme/Cli/encryption-change.php b/Theme/Cli/encryption-change.tpl.php
similarity index 100%
rename from Theme/Cli/encryption-change.php
rename to Theme/Cli/encryption-change.tpl.php
diff --git a/tests/Models/NullGroupTest.php b/tests/Models/NullGroupTest.php
index eef0087..9af53c0 100755
--- a/tests/Models/NullGroupTest.php
+++ b/tests/Models/NullGroupTest.php
@@ -39,4 +39,14 @@ final class NullGroupTest extends \PHPUnit\Framework\TestCase
         $null = new NullGroup(2);
         self::assertEquals(2, $null->id);
     }
+
+    /**
+     * @covers Modules\Admin\Models\NullModule
+     * @group module
+     */
+    public function testJsonSerialize() : void
+    {
+        $null = new NullGroup(2);
+        self::assertEquals(['id' => 2], $null);
+    }
 }
diff --git a/tests/Models/NullModuleTest.php b/tests/Models/NullModuleTest.php
index f982cf7..4caeacc 100755
--- a/tests/Models/NullModuleTest.php
+++ b/tests/Models/NullModuleTest.php
@@ -39,4 +39,14 @@ final class NullModuleTest extends \PHPUnit\Framework\TestCase
         $null = new NullModule('Test');
         self::assertEquals('Test', $null->id);
     }
+
+    /**
+     * @covers Modules\Admin\Models\NullModule
+     * @group module
+     */
+    public function testJsonSerialize() : void
+    {
+        $null = new NullModule('Test');
+        self::assertEquals(['id' => 'Test'], $null);
+    }
 }