diff --git a/config/config.go b/config/config.go
index 084ce1a..11d4540 100644
--- a/config/config.go
+++ b/config/config.go
@@ -35,7 +35,7 @@ type Config struct {
 	EndBlockNum         uint32 `json:"end_block_num"`
 }
 
-func Load(filename string) (Config, error) {
+func Parse(data []byte) (*Config, error) {
 	cfg := Config{
 		StartBlockNum:       NULL_BLOCK_NUMBER,
 		EndBlockNum:         NULL_BLOCK_NUMBER,
@@ -49,15 +49,15 @@ func Load(filename string) (Config, error) {
 		},
 	}
 
+	err := json.Unmarshal(data, &cfg)
+	return &cfg, err
+}
+
+func Load(filename string) (*Config, error) {
 	bytes, err := ioutil.ReadFile(filename)
 	if err != nil {
-		return cfg, err
+		return nil, err
 	}
 
-	err = json.Unmarshal(bytes, &cfg)
-	if err != nil {
-		return cfg, err
-	}
-
-	return cfg, nil
+	return Parse(bytes)
 }
diff --git a/main.go b/main.go
index c2c4e0f..f4ee45f 100644
--- a/main.go
+++ b/main.go
@@ -29,7 +29,7 @@ import (
 //  Global variables
 // ---------------------------
 
-var conf config.Config
+var conf *config.Config
 
 var shClient *shipclient.Client