diff --git a/library/attach_mod/displaying.php b/library/attach_mod/displaying.php
index 8f96af19..8aff87ff 100644
--- a/library/attach_mod/displaying.php
+++ b/library/attach_mod/displaying.php
@@ -197,10 +197,10 @@ function display_attachments($post_id)
 		$thumbnail_filename = $upload_dir . '/' . THUMB_DIR . '/t_' . basename($attachments['_' . $post_id][$i]['physical_filename']);
 
 		// Check the file existence
-		/*if (!is_file($filename))
+		if (!is_file($filename))
 		{
 			continue;
-		}*/
+		}
 
 		$upload_image = '';
 
@@ -319,10 +319,10 @@ function display_attachments($post_id)
 				else
 				{
 					// Checks the thumbnail existence
-					/*if (!is_file($thumbnail_filename))
+					if (!is_file($thumbnail_filename))
 					{
 						continue;
-					}*/
+					}
 
 					$thumb_source = $thumbnail_filename;
 				}