diff --git a/client/rpc_client.go b/client/rpc_client.go
index d8f24f1c..63d20d7b 100644
--- a/client/rpc_client.go
+++ b/client/rpc_client.go
@@ -10,7 +10,6 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/micro/go-micro/broker"
-	"github.com/micro/go-micro/util/pool"
 	"github.com/micro/go-micro/client/selector"
 	"github.com/micro/go-micro/codec"
 	raw "github.com/micro/go-micro/codec/bytes"
@@ -19,6 +18,7 @@ import (
 	"github.com/micro/go-micro/registry"
 	"github.com/micro/go-micro/transport"
 	"github.com/micro/go-micro/util/buf"
+	"github.com/micro/go-micro/util/pool"
 )
 
 type rpcClient struct {
diff --git a/config/cmd/cmd.go b/config/cmd/cmd.go
index ad3fa35a..b8ef8abb 100644
--- a/config/cmd/cmd.go
+++ b/config/cmd/cmd.go
@@ -246,12 +246,12 @@ var (
 	}
 
 	DefaultRuntimes = map[string]func(...runtime.Option) runtime.Runtime{
-		"local":      runtime.NewRuntime,
+		"local": runtime.NewRuntime,
 	}
 
 	DefaultStores = map[string]func(...store.Option) store.Store{
-		"memory":     memStore.NewStore,
-		"service":    svcStore.NewStore,
+		"memory":  memStore.NewStore,
+		"service": svcStore.NewStore,
 	}
 
 	// used for default selection as the fall back
diff --git a/debug/trace/trace.go b/debug/trace/trace.go
index 5cefad2e..229ce981 100644
--- a/debug/trace/trace.go
+++ b/debug/trace/trace.go
@@ -36,6 +36,11 @@ type Span struct {
 
 type spanKey struct{}
 
+var (
+	// Default tracer
+	DefaultTrace = NewTrace()
+)
+
 // FromContext returns a span from context
 func FromContext(ctx context.Context) (*Span, bool) {
 	s, ok := ctx.Value(spanKey{}).(*Span)