diff --git a/passage.go b/passage.go
index 96fb801..1637336 100644
--- a/passage.go
+++ b/passage.go
@@ -38,6 +38,10 @@ func (p *Passage) DisableChars(which int) {
 	p.valids ^= which
 }
 
+func (p *Passage) SetLength(length int) {
+	p.length = length
+}
+
 func (p *Passage) GetValidChars() string {
 	validChars := ""
 	if p.valids&UseLower == UseLower {