diff --git a/services/SystemUsage.qml b/services/SystemUsage.qml
index 9bf665a2..d958dbaa 100644
--- a/services/SystemUsage.qml
+++ b/services/SystemUsage.qml
@@ -70,7 +70,7 @@ Singleton {
             if (data) {
                 const stats = data.slice(1).map(n => parseInt(n, 10));
                 const total = stats.reduce((a, b) => a + b, 0);
-                const idle = stats[3];
+                const idle = stats[3] + (stats[4] ?? 0);
 
                 const totalDiff = total - root.lastCpuTotal;
                 const idleDiff = idle - root.lastCpuIdle;