diff --git a/logger.go b/logger.go
index e3f5fe44..3decaf56 100644
--- a/logger.go
+++ b/logger.go
@@ -16,6 +16,9 @@ type defaultLogger struct {
 	*log.Logger
 }
 
+//var default_logger = log.New(os.Stdout, "\r\n", 0)
+var default_logger = defaultLogger{log.New(os.Stdout, "\r\n", 0)}
+
 func (logger defaultLogger) Print(v ...interface{}) {
 	if len(v) > 1 {
 		level := v[0]
@@ -34,10 +37,3 @@ func (logger defaultLogger) Print(v ...interface{}) {
 		}
 	}
 }
-
-var default_logger defaultLogger
-
-func init() {
-	// default_logger = log.New(os.Stdout, "\r\n", 0)
-	default_logger = defaultLogger{log.New(os.Stdout, "\r\n", 0)}
-}
diff --git a/model.go b/model.go
index 0b54b2bb..2d3cec47 100644
--- a/model.go
+++ b/model.go
@@ -8,11 +8,7 @@ import (
 	"time"
 )
 
-var modelFieldMap map[string][]reflect.StructField
-
-func init() {
-	modelFieldMap = map[string][]reflect.StructField{}
-}
+var modelFieldMap = map[string][]reflect.StructField{}
 
 type Model struct {
 	data          interface{}
diff --git a/utils.go b/utils.go
index f72dfe16..2233c686 100644
--- a/utils.go
+++ b/utils.go
@@ -9,13 +9,8 @@ import (
 	"time"
 )
 
-var toSnakeMap map[string]string
-var toUpperMap map[string]string
-
-func init() {
-	toSnakeMap = map[string]string{}
-	toUpperMap = map[string]string{}
-}
+var toSnakeMap = map[string]string{}
+var toUpperMap = map[string]string{}
 
 func toSnake(u string) string {
 	if v := toSnakeMap[u]; v != "" {