diff --git a/assets/js/app.ts b/assets/js/app.ts
index ebdeeecf..f42bd115 100644
--- a/assets/js/app.ts
+++ b/assets/js/app.ts
@@ -97,6 +97,8 @@ const SensorChart: SensorChartHook = {
       // Add fill for traffic charts to create area effect
       if (isTrafficChart) {
         baseConfig.fill = 'origin'  // Fill to the zero line
+      } else {
+        baseConfig.fill = false  // No fill for CPU/memory/storage charts
       }
 
       return baseConfig