diff --git a/pkg/telemetry/prometheus/node_nonlinux.go b/pkg/telemetry/prometheus/node_nonlinux.go
index 49c628c59..3c2c02d4e 100644
--- a/pkg/telemetry/prometheus/node_nonlinux.go
+++ b/pkg/telemetry/prometheus/node_nonlinux.go
@@ -4,6 +4,8 @@
 package prometheus
 
 import (
+	"runtime"
+
 	"github.com/mackerelio/go-osstat/cpu"
 )
 
@@ -22,5 +24,7 @@ func getCPUStats() (cpuLoad float32, numCPUs uint32, err error) {
 	lastCPUTotal = cpuInfo.Total
 	lastCPUIdle = cpuInfo.Idle
 
+	numCPUs = uint32(runtime.NumCPU())
+
 	return
 }