diff --git a/core.go b/core.go
index 3c80602..cb31680 100644
--- a/core.go
+++ b/core.go
@@ -104,8 +104,8 @@ func (app *App) Run(router *httprouter.Router) {
 
 	// check if template engine is enable
 	TemplateEnableStr := os.Getenv("TEMPLATE_ENABLE")
-	if TemplateEnableStr == "" {
-		TemplateEnableStr = "false"
+	if "" == TemplateEnableStr {
+		TemplateEnableStr = 'false'
 	}
 	TemplateEnable, _ := strconv.ParseBool(TemplateEnableStr)
 	// if enabled,
@@ -119,7 +119,7 @@ func (app *App) Run(router *httprouter.Router) {
 	}
 	useHttps, _ := strconv.ParseBool(useHttpsStr)
 
-	if runMode == "dev" {
+	if "dev" == runMode {
 		fmt.Printf("Welcome to Goffee\n")
 		if useHttps {
 			fmt.Printf("Listening on https \nWaiting for requests...\n")