diff --git a/library/x509.c b/library/x509.c
index 2e11c7f..17d1030 100644
--- a/library/x509.c
+++ b/library/x509.c
@@ -797,6 +797,15 @@
 }
 
 /*
+ * Return the next relative DN in an X509 name.
+ */
+mbedtls_x509_name * mbedtls_x509_dn_get_next( mbedtls_x509_name * dn )
+{
+    for( ; dn->next != NULL && dn->next_merged; dn = dn->next );
+    return( dn->next );
+}
+
+/*
  * Store the serial in printable form into buf; no more
  * than size characters will be written
  */