diff --git a/metropolis/cli/metroctl/cmd_certs.go b/metropolis/cli/metroctl/cmd_certs.go
index e0bfd41..075a0d0 100644
--- a/metropolis/cli/metroctl/cmd_certs.go
+++ b/metropolis/cli/metroctl/cmd_certs.go
@@ -3,6 +3,7 @@
 import (
 	"crypto/x509"
 	"encoding/pem"
+	"errors"
 	"log"
 	"os"
 
@@ -28,7 +29,7 @@
 	Example: "metroctl cert export",
 	Run: func(cmd *cobra.Command, args []string) {
 		ocert, opkey, err := core.GetOwnerCredentials(flags.configPath)
-		if err == core.NoCredentialsError {
+		if errors.Is(err, core.NoCredentialsError) {
 			log.Fatalf("You have to take ownership of the cluster first: %v", err)
 		}