1 files changed, 2 insertions, 2 deletions
diff --git a/names.go b/names.go
index 6491d35..ddd7b17 100644
--- a/names.go
+++ b/names.go
@@ -253,7 +253,7 @@ func (n Name) Format(s string) string {
 // the von part starts at the first non last lower-case taken
 func findVon(part NamePart) int {
 	for i, t := range part {
-		if t.isLower() && i < len(part)-1 {
+		if isLower(t.Text) && i < len(part)-1 {
 			return i
 		}
 	}
@@ -268,7 +268,7 @@ func splitVonLast(part NamePart) (NamePart, NamePart) {
 		return part[:0], part[:]
 	}
 	for i = len(part) - 2; i >= 0; i-- {
-		if part[i].isLower() {
+		if isLower(part[i].Text) {
 			i += 1
 			break
 		}