diff --git a/core/setup/controller.php b/core/setup/controller.php
index 0c87103138b83bca222d5dbfd1d495bdf5bd9c11..5189aba2f34cddf349934bcf545fd7e982ee2135 100644
--- a/core/setup/controller.php
+++ b/core/setup/controller.php
@@ -33,11 +33,21 @@ class Controller {
 	}
 
 	public function display($post) {
+		$defaults = array(
+			'adminlogin' => '',
+			'adminpass' => '',
+			'dbuser' => '',
+			'dbpass' => '',
+			'dbname' => '',
+			'dbtablespace' => '',
+			'dbhost' => '',
+		);
+		$parameters = array_merge($defaults, $post);
 
 		\OC_Util::addScript( '3rdparty', 'strengthify/jquery.strengthify' );
 		\OC_Util::addStyle( '3rdparty', 'strengthify/strengthify' );
 		\OC_Util::addScript('setup');
-		\OC_Template::printGuestPage('', 'installation', $post);
+		\OC_Template::printGuestPage('', 'installation', $parameters);
 	}
 
 	public function finishSetup() {
diff --git a/core/templates/installation.php b/core/templates/installation.php
index 182fc83a4d4f9061c999df60f38b35ac155771d4..7e216d0ee9936682c45e0868ded5db5f1f6e5ed4 100644
--- a/core/templates/installation.php
+++ b/core/templates/installation.php
@@ -48,13 +48,13 @@
 		<legend><?php print_unescaped($l->t( 'Create an <strong>admin account</strong>' )); ?></legend>
 		<p class="infield grouptop">
 			<input type="text" name="adminlogin" id="adminlogin" placeholder=""
-				value="<?php p(OC_Helper::init_var('adminlogin')); ?>" autocomplete="off" autofocus required />
+				value="<?php p($_['adminlogin']); ?>" autocomplete="off" autofocus required />
 			<label for="adminlogin" class="infield"><?php p($l->t( 'Username' )); ?></label>
 			<img class="svg" src="<?php p(image_path('', 'actions/user.svg')); ?>" alt="" />
 		</p>
 		<p class="infield groupbottom">
 			<input type="password" name="adminpass" data-typetoggle="#show" id="adminpass" placeholder=""
-				value="<?php p(OC_Helper::init_var('adminpass')); ?>" required />
+				value="<?php p($_['adminpass']); ?>" required />
 			<label for="adminpass" class="infield"><?php p($l->t( 'Password' )); ?></label>
 			<img class="svg" id="adminpass-icon" src="<?php print_unescaped(image_path('', 'actions/password.svg')); ?>" alt="" />
 			<input type="checkbox" id="show" name="show" />
@@ -75,7 +75,7 @@
 			<label for="directory"><?php p($l->t( 'Data folder' )); ?></label>
 			<input type="text" name="directory" id="directory"
 				placeholder="<?php p(OC::$SERVERROOT."/data"); ?>"
-				value="<?php p(OC_Helper::init_var('directory', $_['directory'])); ?>" />
+				value="<?php p($_['directory']); ?>" />
 		</div>
 	</fieldset>
 	<?php endif; ?>
@@ -149,11 +149,11 @@
 			<p class="infield grouptop">
 				<label for="dbuser" class="infield"><?php p($l->t( 'Database user' )); ?></label>
 				<input type="text" name="dbuser" id="dbuser" placeholder=""
-					value="<?php p(OC_Helper::init_var('dbuser')); ?>" autocomplete="off" />
+					value="<?php p($_['dbuser']); ?>" autocomplete="off" />
 			</p>
 			<p class="infield groupmiddle">
 				<input type="password" name="dbpass" id="dbpass" placeholder="" data-typetoggle="#dbpassword" 
-					value="<?php p(OC_Helper::init_var('dbpass')); ?>" />
+					value="<?php p($_['dbpass']); ?>" />
 				<label for="dbpass" class="infield"><?php p($l->t( 'Database password' )); ?></label>
 				<input type="checkbox" id="dbpassword" name="dbpassword" />
 				<label for="dbpassword"></label>
@@ -161,7 +161,7 @@
 			<p class="infield groupmiddle">
 				<label for="dbname" class="infield"><?php p($l->t( 'Database name' )); ?></label>
 				<input type="text" name="dbname" id="dbname" placeholder=""
-					value="<?php p(OC_Helper::init_var('dbname')); ?>"
+					value="<?php p($_['dbname']); ?>"
 					autocomplete="off" pattern="[0-9a-zA-Z$_-]+" />
 			</p>
 			<?php if($_['hasOracle']): ?>
@@ -169,14 +169,14 @@
 				<p class="infield groupmiddle">
 					<label for="dbtablespace" class="infield"><?php p($l->t( 'Database tablespace' )); ?></label>
 					<input type="text" name="dbtablespace" id="dbtablespace" placeholder=""
-						value="<?php p(OC_Helper::init_var('dbtablespace')); ?>" autocomplete="off" />
+						value="<?php p($_['dbtablespace']); ?>" autocomplete="off" />
 				</p>
 			</div>
 			<?php endif; ?>
 			<p class="infield groupbottom">
 				<label for="dbhost" class="infield"><?php p($l->t( 'Database host' )); ?></label>
 				<input type="text" name="dbhost" id="dbhost" placeholder=""
-					value="<?php p(OC_Helper::init_var('dbhost')); ?>" />
+					value="<?php p($_['dbhost']); ?>" />
 			</p>
 		</div>
 		<?php endif; ?>