diff --git a/res/css/views/rooms/_RoomHeader.pcss b/res/css/views/rooms/_RoomHeader.pcss
index 48e3f04be6..80e3bfd306 100644
--- a/res/css/views/rooms/_RoomHeader.pcss
+++ b/res/css/views/rooms/_RoomHeader.pcss
@@ -159,7 +159,6 @@ limitations under the License.
     font-size: $font-13px;
     line-height: $lineHeight;
     max-height: calc($lineHeight * $lines);
-    border-bottom: 1px solid transparent;
 
     /* to align baseline of topic with room name */
     margin: 4px 7px 0;