diff --git src/wp-admin/async-upload.php src/wp-admin/async-upload.php
index 5e28c1e8e4..7506c5278f 100644
--- src/wp-admin/async-upload.php
+++ src/wp-admin/async-upload.php
@@ -53,7 +53,7 @@ if ( isset( $_REQUEST['attachment_id'] ) && intval( $_REQUEST['attachment_id'] )
 		case 3:
 			$thumb_url = wp_get_attachment_image_src( $id, 'thumbnail', true );
 			if ( $thumb_url ) {
-				echo '<img class="pinkynail" src="' . esc_url( $thumb_url[0] ) . '" alt="" />';
+				echo '<img class="pinkynail" src="' . $thumb_url[0] . '" alt="" />';
 			}
 			echo '<a class="edit-attachment" href="' . esc_url( get_edit_post_link( $id ) ) . '" target="_blank">' . _x( 'Edit', 'media item' ) . '</a>';