fix return value of method

diff --git a/lib/preview.php b/lib/preview.php
index 0497ec95bc5fb8fd8d53f4f456d5dead1a426e79..a8a8580e229e285a067522aeb69b809c7313253f 100755 (executable)
--- a/lib/preview.php
+++ b/lib/preview.php
@@ -444,7 +444,8 @@ class Preview {
         * @return void
        */
        public function show() {
-               return $this->showPreview();
+               $this->showPreview();
+               return;
        }
 
        /**