diff --git a/contrib/ansible/genkeys.go b/contrib/ansible/genkeys.go
index 1d7c222..681431b 100644
--- a/contrib/ansible/genkeys.go
+++ b/contrib/ansible/genkeys.go
@@ -12,9 +12,9 @@ import (
 	"net"
 	"os"
 
+	"github.com/cheggaaa/pb/v3"
 	"github.com/yggdrasil-network/yggdrasil-go/src/address"
 	"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
-	"github.com/cheggaaa/pb/v3"
 )
 
 var numHosts = flag.Int("hosts", 1, "number of host vars to generate")
@@ -30,7 +30,7 @@ type keySet struct {
 func main() {
 	flag.Parse()
 
-	bar := pb.StartNew(*keyTries * 2 + *numHosts)
+	bar := pb.StartNew(*keyTries*2 + *numHosts)
 
 	if *numHosts > *keyTries {
 		println("Can't generate less keys than hosts.")
diff --git a/src/yggdrasil/core.go b/src/yggdrasil/core.go
index 98a5c6e..d88b787 100644
--- a/src/yggdrasil/core.go
+++ b/src/yggdrasil/core.go
@@ -160,7 +160,10 @@ func (c *Core) _start(nc *config.NodeConfig, log *log.Logger) (*config.NodeState
 	}
 
 	c.log.Infoln("Starting up...")
-	c._init()
+	if err := c._init(); err != nil {
+		c.log.Errorln("Failed to initialize core")
+		return nil, err
+	}
 
 	if err := c.link.init(c); err != nil {
 		c.log.Errorln("Failed to start link interfaces")