diff --git a/src/SEOManager.php b/src/SEOManager.php
index 90a8a84..bb900ea 100644
--- a/src/SEOManager.php
+++ b/src/SEOManager.php
@@ -189,7 +189,7 @@ class SEOManager
     /** Add a meta tag. */
     public function tag(string $property, string $content): static
     {
-        $this->rawTag("<meta property\"{$property}\" content=\"{$content}\" />");
+        $this->rawTag("<meta property=\"{$property}\" content=\"{$content}\" />");
 
         return $this;
     }