diff --git a/packages/client/src/components/global/MkPageHeader.vue b/packages/client/src/components/global/MkPageHeader.vue
index 831eca9976..4a6b72a4e8 100644
--- a/packages/client/src/components/global/MkPageHeader.vue
+++ b/packages/client/src/components/global/MkPageHeader.vue
@@ -132,6 +132,11 @@ function onTabClick(tab: Tab, ev: MouseEvent): void {
 	}
 }
 
+const isActiveTab = (index: number) => {
+  const activeTab = tabRefs[props.tab]?.value ?? 0;
+  return index === activeTab;
+};
+
 const calcBg = () => {
 	const rawBg = metadata?.bg || 'var(--bg)';
 	const tinyBg = tinycolor(rawBg.startsWith('var(') ? getComputedStyle(document.documentElement).getPropertyValue(rawBg.slice(4, -1)) : rawBg);