diff --git a/private/lib/media/MediaRendererInterface.php b/private/lib/media/MediaRendererInterface.php
index 079c975..eda7d12 100644
--- a/private/lib/media/MediaRendererInterface.php
+++ b/private/lib/media/MediaRendererInterface.php
@@ -24,11 +24,6 @@ interface MediaRendererInterface{
 	const SIZE_MINI_H = 60;
 	
 	
-	const SIZE_FACEBOOK = 6;
-	const SIZE_FACEBOOK_W = 200;
-	const SIZE_FACEBOOK_H = 112;
-	
-	
 	public function asText(array $opt = array()) ;
 	public function render(array $opt = array());
 }
diff --git a/private/lib/media/mediaRenderers/MediaRenderer.php b/private/lib/media/mediaRenderers/MediaRenderer.php
index 492b3b1..1a311ae 100644
--- a/private/lib/media/mediaRenderers/MediaRenderer.php
+++ b/private/lib/media/mediaRenderers/MediaRenderer.php
@@ -10,8 +10,7 @@ abstract class MediaRenderer implements MediaRendererInterface{
 			MediaRendererInterface::SIZE_MEDIUM => array("width"=>MediaRendererInterface::SIZE_MEDIUM_W,"height"=>MediaRendererInterface::SIZE_MEDIUM_H),
 			MediaRendererInterface::SIZE_BIG => array("width"=>MediaRendererInterface::SIZE_BIG_W,"height"=>MediaRendererInterface::SIZE_BIG_H),
 			MediaRendererInterface::SIZE_ORIGINAL => array("width"=>MediaRendererInterface::SIZE_ORIGINAL_W,"height"=>MediaRendererInterface::SIZE_ORIGINAL_H),
-			MediaRendererInterface::SIZE_MINI => array("width"=>MediaRendererInterface::SIZE_MINI_W,"height"=>MediaRendererInterface::SIZE_MINI_H),
-			MediaRendererInterface::SIZE_FACEBOOK => array("width"=>MediaRendererInterface::SIZE_FACEBOOK_W,"height"=>MediaRendererInterface::SIZE_FACEBOOK_H)
+			MediaRendererInterface::SIZE_MINI => array("width"=>MediaRendererInterface::SIZE_MINI_W,"height"=>MediaRendererInterface::SIZE_MINI_H)
 			
 	);
 }
diff --git a/public/articolo.php b/public/articolo.php
index 015ef9a..f3336f0 100644
--- a/public/articolo.php
+++ b/public/articolo.php
@@ -61,8 +61,8 @@ try {
 	}
 	else if ($media->mediaType == MediaModel::TYPE_IMAGE){
 		$mediaMetaInfo = 'itemprop="image"';
-		$additionalHeaders[] = '<meta property="og:image" content="'.$media->getRenderer()->getImageLink(MediaRenderer::SIZE_FACEBOOK).'"/>';
-		$additionalHeaders[] = '<meta property="og:image:url" content="'.$media->getRenderer()->getImageLink(MediaRenderer::SIZE_FACEBOOK).'"/>';
+		$additionalHeaders[] = '<meta property="og:image" content="'.$media->getRenderer()->getImageLink(MediaRenderer::SIZE_MEDIUM).'"/>';
+		$additionalHeaders[] = '<meta property="og:image:url" content="'.$media->getRenderer()->getImageLink(MediaRenderer::SIZE_MEDIUM).'"/>';
 	}
 	
 	if(array_key_exists("submit", $_POST) && strcmp($_POST["submit"] ,"Submit")==0){