diff --git a/apps/files_sharing/ajax/publicpreview.php b/apps/files_sharing/ajax/publicpreview.php
index a52f522afa..d12d212a2e 100644
--- a/apps/files_sharing/ajax/publicpreview.php
+++ b/apps/files_sharing/ajax/publicpreview.php
@@ -11,7 +11,7 @@ if(!\OC_App::isEnabled('files_sharing')){
 
 \OC_User::setIncognitoMode(true);
 
-$file = array_key_exists('file', $_GET) ? (string) urldecode($_GET['file']) : '';
+$file = array_key_exists('file', $_GET) ? (string) $_GET['file'] : '';
 $maxX = array_key_exists('x', $_GET) ? (int) $_GET['x'] : '36';
 $maxY = array_key_exists('y', $_GET) ? (int) $_GET['y'] : '36';
 $scalingUp = array_key_exists('scalingup', $_GET) ? (bool) $_GET['scalingup'] : true;
diff --git a/apps/files_sharing/templates/public.php b/apps/files_sharing/templates/public.php
index 3ddaf4446d..3eb84ce167 100644
--- a/apps/files_sharing/templates/public.php
+++ b/apps/files_sharing/templates/public.php
@@ -35,7 +35,7 @@
 			<?php else: ?>
 				<div id="imgframe">
 					<?php $size = \OC\Preview::isMimeSupported($_['mimetype']) ? 500 : 128 ?>
-					<img src="<?php p(OCP\Util::linkToRoute( 'core_ajax_public_preview', array('x' => $size, 'y' => $size, 'file' => urlencode($_['directory_path']), 't' => $_['dirToken']))); ?>" class="publicpreview"/>
+					<img src="<?php p(OCP\Util::linkToRoute( 'core_ajax_public_preview', array('x' => $size, 'y' => $size, 'file' => $_['directory_path'], 't' => $_['dirToken']))); ?>" class="publicpreview"/>
 				</div>
 			<?php endif; ?>
 			<div class="directDownload">
diff --git a/apps/files_trashbin/ajax/preview.php b/apps/files_trashbin/ajax/preview.php
index 44738734b1..ce64d9ecc9 100644
--- a/apps/files_trashbin/ajax/preview.php
+++ b/apps/files_trashbin/ajax/preview.php
@@ -11,7 +11,7 @@ if(!\OC_App::isEnabled('files_trashbin')){
 	exit;
 }
 
-$file = array_key_exists('file', $_GET) ? (string) urldecode($_GET['file']) : '';
+$file = array_key_exists('file', $_GET) ? (string) $_GET['file'] : '';
 $maxX = array_key_exists('x', $_GET) ? (int) $_GET['x'] : '44';
 $maxY = array_key_exists('y', $_GET) ? (int) $_GET['y'] : '44';
 $scalingUp = array_key_exists('scalingup', $_GET) ? (bool) $_GET['scalingup'] : true;
diff --git a/apps/files_trashbin/lib/trashbin.php b/apps/files_trashbin/lib/trashbin.php
index 7544980e07..9b7d578c99 100644
--- a/apps/files_trashbin/lib/trashbin.php
+++ b/apps/files_trashbin/lib/trashbin.php
@@ -996,6 +996,6 @@ class Trashbin {
 	}
 
 	public static function preview_icon($path) {
-		return \OC_Helper::linkToRoute( 'core_ajax_trashbin_preview', array('x' => 36, 'y' => 36, 'file' => urlencode($path) ));
+		return \OC_Helper::linkToRoute( 'core_ajax_trashbin_preview', array('x' => 36, 'y' => 36, 'file' => $path ));
 	}
 }
diff --git a/core/ajax/preview.php b/core/ajax/preview.php
index af0f0493f4..a1267d6f5c 100644
--- a/core/ajax/preview.php
+++ b/core/ajax/preview.php
@@ -7,7 +7,7 @@
  */
 \OC_Util::checkLoggedIn();
 
-$file = array_key_exists('file', $_GET) ? (string) urldecode($_GET['file']) : '';
+$file = array_key_exists('file', $_GET) ? (string) $_GET['file'] : '';
 $maxX = array_key_exists('x', $_GET) ? (int) $_GET['x'] : '36';
 $maxY = array_key_exists('y', $_GET) ? (int) $_GET['y'] : '36';
 $scalingUp = array_key_exists('scalingup', $_GET) ? (bool) $_GET['scalingup'] : true;