diff --git a/src/Squidex/app/features/rules/pages/rules/rules-page.component.html b/src/Squidex/app/features/rules/pages/rules/rules-page.component.html
index 375b88f67..ea5003146 100644
--- a/src/Squidex/app/features/rules/pages/rules/rules-page.component.html
+++ b/src/Squidex/app/features/rules/pages/rules/rules-page.component.html
@@ -78,7 +78,7 @@
     <ng-container sidebar>
         <sqx-tooltip position="leftTop" [target]="historyLink">Events</sqx-tooltip>
 
-        <a class="panel-link" routerLink="events" routerLinkActive="active" #historyLink>
+        <a class="panel-link panel-link-gray" routerLink="events" routerLinkActive="active" #historyLink>
             <i class="icon-time"></i>
         </a>
 
diff --git a/src/Squidex/app/theme/_panels.scss b/src/Squidex/app/theme/_panels.scss
index 37e60a7b9..9cd70cdad 100644
--- a/src/Squidex/app/theme/_panels.scss
+++ b/src/Squidex/app/theme/_panels.scss
@@ -186,6 +186,14 @@
                     background: $panel-light-background;
                 }
             }
+
+            &-gray {
+                &.active {
+                    &::before {
+                        background: transparent;
+                    }
+                }
+            }
         }
     }