diff --git a/assets/css/photoswipe/default-skin/default-skin.css b/assets/css/photoswipe/default-skin/default-skin.css
index f678fea2f08..e3fc10747e8 100644
--- a/assets/css/photoswipe/default-skin/default-skin.css
+++ b/assets/css/photoswipe/default-skin/default-skin.css
@@ -31,6 +31,7 @@
   margin: 0;
   float: right;
   opacity: 0.75;
+  z-index: 1600;
   -webkit-transition: opacity 0.2s;
           transition: opacity 0.2s;
   -webkit-box-shadow: none;