diff --git a/src/main/java/org/apache/sling/commons/messaging/mail/internal/SimpleMessageBuilder.java b/src/main/java/org/apache/sling/commons/messaging/mail/internal/SimpleMessageBuilder.java
index 57a7b50..79d09d3 100644
--- a/src/main/java/org/apache/sling/commons/messaging/mail/internal/SimpleMessageBuilder.java
+++ b/src/main/java/org/apache/sling/commons/messaging/mail/internal/SimpleMessageBuilder.java
@@ -331,7 +331,7 @@
         message.setRecipients(Message.RecipientType.TO, to().toArray(new Address[0]));
         message.setRecipients(Message.RecipientType.CC, cc().toArray(new Address[0]));
         message.setRecipients(Message.RecipientType.BCC, bcc().toArray(new Address[0]));
-        message.setReplyTo(replyTos.toArray(new Address[0]));
+        message.setReplyTo(replyTo().toArray(new Address[0]));
         message.setSubject(subject(), StandardCharsets.UTF_8.name());
 
         if (hasHtml() || hasAttachments() || hasInlines()) {