diff --git a/src/skins/vector/css/matrix-react-sdk/views/rooms/UrlPreviewWidget.css b/src/skins/vector/css/matrix-react-sdk/views/rooms/UrlPreviewWidget.css
index e8ef26b7..ae54b900 100644
--- a/src/skins/vector/css/matrix-react-sdk/views/rooms/UrlPreviewWidget.css
+++ b/src/skins/vector/css/matrix-react-sdk/views/rooms/UrlPreviewWidget.css
@@ -21,7 +21,7 @@ limitations under the License.
     margin-bottom: 15px;
     display: -webkit-flex;
     display: flex;
-    border-left: 5px solid #ddd;
+    border-left: 4px solid #ddd;
     color: #888;
 }