diff --git a/validate.go b/validate.go
index 63ed1a4..2317edb 100644
--- a/validate.go
+++ b/validate.go
@@ -39,7 +39,11 @@ func (f Fields) ToString(tag string) string {
 		var name string
 		if tag != `` {
 			name = v.Field.Tag.Get(tag)
+			if idx := strings.IndexRune(name, ','); idx != -1 {
+				name = name[:idx]
+			}
 		}
+
 		if name == `` {
 			name = v.Field.Name
 		}