diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions.php b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions.php
index f0fcba9c2..283cd9bb0 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions.php
@@ -745,6 +745,7 @@ class Actions
 					];
 					$aData['Password'] = empty($aData['Password']) ? '' : static::APP_DUMMY;
 					$aData['Interval'] = \max(20, \min(320, (int) $oConfig->Get('contacts', 'sync_interval', 20)));
+					unset($aData['PasswordHMAC']);
 					$aResult['ContactsSync'] = $aData;
 				}