diff --git a/apps/files_versions/ajax/preview.php b/apps/files_versions/ajax/preview.php
index 62bcc03f52..31525028ef 100644
--- a/apps/files_versions/ajax/preview.php
+++ b/apps/files_versions/ajax/preview.php
@@ -37,8 +37,9 @@ if($maxX === 0 || $maxY === 0) {
 }
 
 try{
-	$preview = new \OC\Preview($user, 'files_versions');
-	$preview->setFile($file.'.v'.$version);
+	$preview = new \OC\Preview($user, 'files_versions', $file.'.v'.$version);
+	$mimetype = \OC_Helper::getFileNameMimeType($file);
+	$preview->setMimetype($mimetype);
 	$preview->setMaxX($maxX);
 	$preview->setMaxY($maxY);
 	$preview->setScalingUp($scalingUp);