diff --git a/logintoboggan.module b/logintoboggan.module
index 4af9ffda539f353aec4439ae1868fb517f6c63fc..99da9798bbc50e81cdc271c120d2d8c895b9e1b6 100755
--- a/logintoboggan.module
+++ b/logintoboggan.module
@@ -927,8 +927,8 @@ function logintoboggan_eml_validate_url($account){
   return url("user/validate/$account->uid/$timestamp/".logintoboggan_eml_rehash($account->pass, $timestamp, $account->mail), NULL, NULL, TRUE);
 }
 
-function logintoboggan_eml_rehash($password, $timestamp, $mail){
-  return md5($timestamp . $password . $mail);
+function logintoboggan_eml_rehash($password, $timestamp, $mail) {
+  return user_pass_rehash($password, $timestamp, $mail);
 }
 
 /**