diff --git a/src/Security/Member.php b/src/Security/Member.php
index 804356fab..b715f0fde 100644
--- a/src/Security/Member.php
+++ b/src/Security/Member.php
@@ -797,7 +797,9 @@ class Member extends DataObject
         if (!$this->ID || $this->isChanged('Password')) {
             $this->encryptPassword();
         }
-
+        if(! $this->PasswordEncryption) {
+            $this->PasswordEncryption = Security::config()->get('password_encryption_algorithm');
+        }
         // save locale
         if (!$this->Locale) {
             $this->Locale = i18n::config()->get('default_locale');