diff --git a/g_docs.go b/g_docs.go
index 39cf85f..04c0400 100644
--- a/g_docs.go
+++ b/g_docs.go
@@ -45,19 +45,21 @@ import (
 	"github.com/astaxie/beego/swagger"
 )
 
-var rootinfo string = {{.rootinfo}}
-var subapi string = {{.subapi}}
-var rootapi swagger.ResourceListing
+const (
+    Rootinfo string = {{.rootinfo}}
+    Subapi string = {{.subapi}}
+    BasePath string= "{{.version}}"
+)
 
+var rootapi swagger.ResourceListing
 var apilist map[string]*swagger.ApiDeclaration
 
 func init() {
-	basepath := "{{.version}}"
-	err := json.Unmarshal([]byte(rootinfo), &rootapi)
+	err := json.Unmarshal([]byte(Rootinfo), &rootapi)
 	if err != nil {
 		beego.Error(err)
 	}
-	err = json.Unmarshal([]byte(subapi), &apilist)
+	err = json.Unmarshal([]byte(Subapi), &apilist)
 	if err != nil {
 		beego.Error(err)
 	}
@@ -67,7 +69,7 @@ func init() {
 			a.Path = urlReplace(k + a.Path)
 			v.Apis[i] = a
 		}
-		v.BasePath = basepath
+		v.BasePath = BasePath
 		beego.GlobalDocApi[strings.Trim(k, "/")] = v
 	}
 }