diff --git a/src/pmrep/conf/collectl.conf b/src/pmrep/conf/collectl.conf
index 85547dc889..cc24487f35 100644
--- a/src/pmrep/conf/collectl.conf
+++ b/src/pmrep/conf/collectl.conf
@@ -46,9 +46,9 @@ timestamp = yes
 precision = 2
 delimiter = " "
 cpu                = cpu,,,,5
-cpu.formula        = 100 * (rate(kernel.all.cpu.user) + rate(kernel.all.cpu.nice)) / hinv.ncpu
+cpu.formula        = 100 * (rate(kernel.all.cpu.sys) + rate(kernel.all.cpu.intr) + rate(kernel.all.cpu.steal) + rate(kernel.all.cpu.user) + rate(kernel.all.cpu.nice)) / hinv.ncpu
 sys                = sys,,,,5
-sys.formula        = 100 * rate(kernel.all.cpu.sys) / hinv.ncpu
+sys.formula        = 100 * (rate(kernel.all.cpu.sys) + rate(kernel.all.cpu.intr) + rate(kernel.all.cpu.steal)) / hinv.ncpu
 kernel.all.intr    = intr/s,,,,7
 kernel.all.pswitch = cswch/s,,,,8