diff --git a/res/css/structures/_GroupView.scss b/res/css/structures/_GroupView.scss
index 1c477a959a..bfbc92ca05 100644
--- a/res/css/structures/_GroupView.scss
+++ b/res/css/structures/_GroupView.scss
@@ -170,7 +170,6 @@ limitations under the License.
 
 .mx_GroupView > .mx_MainSplit {
     flex: 1;
-    display: flex;
 }
 
 .mx_GroupView_body  {
diff --git a/res/css/structures/_RoomView.scss b/res/css/structures/_RoomView.scss
index 77b868e391..8e3eb75608 100644
--- a/res/css/structures/_RoomView.scss
+++ b/res/css/structures/_RoomView.scss
@@ -77,7 +77,6 @@ limitations under the License.
 
 .mx_RoomView .mx_MainSplit {
     flex: 1 1 0;
-    display: flex;
 }
 
 .mx_RoomView_body {