diff --git a/src/skins/vector/css/matrix-react-sdk/views/rooms/RoomPreviewBar.css b/src/skins/vector/css/matrix-react-sdk/views/rooms/RoomPreviewBar.css
index 50a4fd520b..286a39f7d5 100644
--- a/src/skins/vector/css/matrix-react-sdk/views/rooms/RoomPreviewBar.css
+++ b/src/skins/vector/css/matrix-react-sdk/views/rooms/RoomPreviewBar.css
@@ -54,3 +54,15 @@ limitations under the License.
     text-decoration: underline;
     cursor: pointer;
 }
+
+.mx_RoomPreviewBar_warning {
+    display: -webkit-flex;
+    display: flex;
+    -webkit-align-items: center;
+    align-items: center;
+    padding: 8px;
+}
+
+.mx_RoomPreviewBar_warningIcon {
+    padding: 12px;
+}