diff --git a/badge.go b/badge.go
index 5cd8e49..ffc6c89 100644
--- a/badge.go
+++ b/badge.go
@@ -213,6 +213,7 @@ func (g *Generator) generateBadgeSimple(template, message, color string) []byte
 
 // ////////////////////////////////////////////////////////////////////////////////// //
 
+// formatColor formats color
 func formatColor(c string) string {
 	if strings.HasPrefix(c, "#") {
 		c = strings.TrimLeft(c, "#")