1 files changed, 4 insertions, 0 deletions

diff --git a/collector/powersupplyclass.go b/collector/powersupplyclass.go
index 988b0ee..368235e 100644
--- a/collector/powersupplyclass.go
+++ b/collector/powersupplyclass.go
@@ -18,6 +18,7 @@ package collector
 
 import (
         "fmt"
+        "os"
         "regexp"
 
         "github.com/go-kit/kit/log"
@@ -54,6 +55,9 @@ func NewPowerSupplyClassCollector(logger log.Logger) (Collector, error) {
 func (c *powerSupplyClassCollector) Update(ch chan<- prometheus.Metric) error {
         powerSupplyClass, err := getPowerSupplyClassInfo(c.ignoredPattern)
         if err != nil {
+                if os.IsNotExist(err) {
+                        return ErrNoData
+                }
                 return fmt.Errorf("could not get power_supply class info: %s", err)
         }
         for _, powerSupply := range powerSupplyClass {