diff --git a/res/css/views/right_panel/_TimelineCard.scss b/res/css/views/right_panel/_TimelineCard.scss
index a277b9ce6f..255daf3703 100644
--- a/res/css/views/right_panel/_TimelineCard.scss
+++ b/res/css/views/right_panel/_TimelineCard.scss
@@ -32,6 +32,22 @@ limitations under the License.
     }
 
     .mx_EventTile {
+        .mx_ThreadSummary {
+            position: relative;
+            padding-right: 11px;
+
+            &::after {
+                content: '';
+                display: block;
+                position: absolute;
+                left: 0;
+                bottom: -16px;
+                height: 1px;
+                width: 100%;
+                border-bottom: 1px solid $message-action-bar-border-color;
+            }
+        }
+
         &[data-layout=irc],
         &[data-layout=group] {
             &.mx_EventTile_info .mx_EventTile_line,
@@ -109,25 +125,6 @@ limitations under the License.
         }
     }
 
-    .mx_EventTile,
-    .mx_GenericEventListSummary {
-        .mx_ThreadSummary {
-            position: relative;
-            padding-right: 11px;
-
-            &::after {
-                content: '';
-                display: block;
-                position: absolute;
-                left: 0;
-                bottom: -16px;
-                height: 1px;
-                width: 100%;
-                border-bottom: 1px solid $message-action-bar-border-color;
-            }
-        }
-    }
-
     .mx_CallEvent_wrapper {
         justify-content: center;
         margin: auto 5px;