diff --git a/vendor/github.com/moul/funcmap/funcmap.go b/vendor/github.com/moul/funcmap/funcmap.go
index 8ba0106..a4fe228 100644
--- a/vendor/github.com/moul/funcmap/funcmap.go
+++ b/vendor/github.com/moul/funcmap/funcmap.go
@@ -23,8 +23,8 @@ var FuncMap = template.FuncMap{
 	"split": strings.Split,
 	"join":  strings.Join,
 	"title": strings.Title,
-	"unexport": func(v interface{}) string {
-		return fmt.Sprintf("%s%s", strings.ToLower(v.(string)[0:1]), v.(string)[1:])
+	"unexport": func(input string) string {
+		return fmt.Sprintf("%s%s", strings.ToLower(input[0:1]), input[1:])
 	},
 	"lower": strings.ToLower,
 	"upper": strings.ToUpper,