diff --git a/cmd/convert.go b/cmd/convert.go
index a3bc5c57..238d8a24 100644
--- a/cmd/convert.go
+++ b/cmd/convert.go
@@ -41,7 +41,7 @@ var convertCmd = &cobra.Command{
 
 		input := args[0]
 		output := args[1]
-		Info("Converting trees from" + input + " [" + t + "]")
+		Info("Converting trees from " + input + " [" + t + "]")
 
 		var builder tree.Parser
 		switch t {
diff --git a/pkg/logger/logger.go b/pkg/logger/logger.go
index 3aa5c13b..f9541cbb 100644
--- a/pkg/logger/logger.go
+++ b/pkg/logger/logger.go
@@ -2,6 +2,7 @@ package logger
 
 import (
 	"fmt"
+	"sync"
 	"time"
 
 	. "github.com/logrusorgru/aurora"
@@ -10,6 +11,7 @@ import (
 )
 
 var s *spinner.Spinner
+var m = &sync.Mutex{}
 
 func Spinner(i int) {
 	if i > 43 {
@@ -21,6 +23,8 @@ func Spinner(i int) {
 }
 
 func SpinnerText(suffix, prefix string) {
+	m.Lock()
+	defer m.Unlock()
 	s.Suffix = Bold(Magenta(suffix)).BgBlack().String()
 	s.Prefix = Bold(Cyan(prefix)).String()
 }
@@ -33,7 +37,7 @@ func SpinnerStop() {
 func Warning(msg ...interface{}) {
 	if s != nil {
 		SpinnerText(Sprintf(msg), Bold(Yellow("Warn")).BgBlack().String())
-		//	return
+		return
 	}
 	cmd := []interface{}{Bold(Yellow("Warn")).BgBlack().String()}
 	for _, f := range msg {
@@ -44,7 +48,7 @@ func Warning(msg ...interface{}) {
 func Debug(msg ...interface{}) {
 	if s != nil {
 		SpinnerText(Sprintf(msg), Bold(White("Debug")).BgBlack().String())
-		//	return
+		return
 	}
 	cmd := []interface{}{Bold(White("Debug")).String()}
 	for _, f := range msg {
@@ -56,7 +60,7 @@ func Debug(msg ...interface{}) {
 func Info(msg ...interface{}) {
 	if s != nil {
 		SpinnerText(Sprintf(msg), Bold(Blue("Info")).BgBlack().String())
-		//	return
+		return
 	}
 	cmd := []interface{}{Bold(Green("Info")).String()}
 	for _, f := range msg {
@@ -68,7 +72,7 @@ func Info(msg ...interface{}) {
 func Error(msg ...interface{}) {
 	if s != nil {
 		SpinnerText(Sprintf(msg), Bold(Red("Error")).BgBlack().String())
-		//	return
+		return
 	}
 	cmd := []interface{}{Bold(Red("Error")).String()}
 	for _, f := range msg {