diff --git a/webgis/js/ui.js b/webgis/js/ui.js
index 9478fc2..2863fae 100644
--- a/webgis/js/ui.js
+++ b/webgis/js/ui.js
@@ -248,8 +248,9 @@ UI.imageGallery = function (galleryId, items, video = false) {
 		let gallery = [];
 		for (let media of items) {
 			let author = media.author ? ` (${media.author})` : '';
+			let caption = media.caption ?? '';
 			let mediaObj = {
-				description: media.caption + author
+				description: caption + author
 			};
 
 			if (video) {