diff --git a/src/Containers/DocumentTags/TitleTagInterface.php b/src/Containers/DocumentTags/TitleTagInterface.php
index fa8046f..fec8c08 100644
--- a/src/Containers/DocumentTags/TitleTagInterface.php
+++ b/src/Containers/DocumentTags/TitleTagInterface.php
@@ -2,10 +2,8 @@
 
 namespace ByJoby\HTML\Containers\DocumentTags;
 
-use Stringable;
+use ByJoby\HTML\Tags\ContentTagInterface;
 
-interface TitleTagInterface
+interface TitleTagInterface extends ContentTagInterface
 {
-    public function setContent(string|Stringable $content): static;
-    public function content(): string|Stringable;
 }
\ No newline at end of file
diff --git a/tests/Html5/DocumentTags/TitleTagTest.php b/tests/Html5/DocumentTags/TitleTagTest.php
index 44a4ab2..cb2906f 100644
--- a/tests/Html5/DocumentTags/TitleTagTest.php
+++ b/tests/Html5/DocumentTags/TitleTagTest.php
@@ -6,7 +6,7 @@ use PHPUnit\Framework\TestCase;
 
 class TitleTagTest extends TestCase
 {
-    public function testGetAndSet()
+    public function testGetAndSet(): void
     {
         $title = new TitleTag;
         $this->assertEquals('Untitled', $title->content());