diff --git a/bin/cpu-usage b/bin/cpu-usage
index dc3a9b62..e106c39f 100755
--- a/bin/cpu-usage
+++ b/bin/cpu-usage
@@ -4,4 +4,4 @@
 # CAVEAT: it is not realtime, and takes ~1 second
 
 cat <(grep 'cpu ' /proc/stat) <(sleep 1 && grep 'cpu ' /proc/stat) | \
-    awk -v RS="" '{printf "%.2f", ($13-$2+$15-$4)*100/($13-$2+$15-$4+$16-$5) "%"}'
+    awk -v RS="" '{printf "%.2f", ($13-$2+$14-$3+$15-$4+$18-$7+$19-$8+$20-$9)*100/($13-$2+$14-$3+$15-$4+$16-$5+$17-$6+$18-$7+$19-$8+$20-$9) "%"}'