diff --git a/src/components/dashboard/DeviceSection.vue b/src/components/dashboard/DeviceSection.vue
index c9138ff..9778ed2 100644
--- a/src/components/dashboard/DeviceSection.vue
+++ b/src/components/dashboard/DeviceSection.vue
@@ -336,7 +336,7 @@ async function loadUtilizationRanking() {
     const vb = parseFloat(b.utilizationRate) || 0
     return vb - va
   })
-  const categories = sorted.map((item) => item.deviceName || '')
+  const categories = sorted.map((item) => formatRankingAxisLabel(item.deviceName || ''))
   const data = sorted.map((item) => {
     const v = parseFloat(item.utilizationRate)
     return isNaN(v) ? 0 : Math.round(v * 100) / 100