diff --git a/controller/registercontroller.php b/controller/registercontroller.php
index 43450ef..255632d 100644
--- a/controller/registercontroller.php
+++ b/controller/registercontroller.php
@@ -85,7 +85,7 @@ class RegisterController extends Controller {
 			), 'error');
 		}
 
-		if ( !empty($this->config->getUsersForUserValue('settings', 'email', $email)) ) {
+		if ( $this->config->getUsersForUserValue('settings', 'email', $email) ) {
 			return new TemplateResponse('', 'error', array(
 				'errors' => array(array(
 					'error' => $this->l10n->t('There is an existing user with this email'),
diff --git a/templates/register.php b/templates/register.php
index ef4b73c..96dfa53 100644
--- a/templates/register.php
+++ b/templates/register.php
@@ -25,7 +25,7 @@ if ($_['entered']): ?>
 <?php else: ?>
 	<form action="<?php print_unescaped(OC_Helper::linkToRoute('registration.register.validateEmail')) ?>" method="post">
 		<fieldset>
-			<?php if (!empty($_['errormsg'])): ?>
+			<?php if ($_['errormsg']): ?>
 				<ul class="error">
 					<li><?php print_unescaped($_['errormsg']); ?></li>
 					<li><?php print_unescaped($l->t('Please re-enter a valid email address')); ?></li>