1 files changed, 2 insertions, 1 deletions

diff --git a/collector/filesystem_linux.go b/collector/filesystem_linux.go
index e83b27a..00a7323 100644
--- a/collector/filesystem_linux.go
+++ b/collector/filesystem_linux.go
@@ -17,6 +17,7 @@ package collector
 
 import (
         "bufio"
+        "errors"
         "fmt"
         "io"
         "os"
@@ -139,7 +140,7 @@ func stuckMountWatcher(mountPoint string, success chan struct{}, logger log.Logg
 
 func mountPointDetails(logger log.Logger) ([]filesystemLabels, error) {
         file, err := os.Open(procFilePath("1/mounts"))
-        if os.IsNotExist(err) {
+        if errors.Is(err, os.ErrNotExist) {
                 // Fallback to `/proc/mounts` if `/proc/1/mounts` is missing due hidepid.
                 level.Debug(logger).Log("msg", "Reading root mounts failed, falling back to system mounts", "err", err)
                 file, err = os.Open(procFilePath("mounts"))