diff --git a/res/css/structures/_RoomView.scss b/res/css/structures/_RoomView.scss
index 5e8d84ff32..28591ad7a4 100644
--- a/res/css/structures/_RoomView.scss
+++ b/res/css/structures/_RoomView.scss
@@ -140,6 +140,7 @@ limitations under the License.
     display: flex;
     flex-direction: column;
     width: 100%;
+    min-width: 0;
 }
 
 .mx_RoomView_body {