diff --git a/app/coffee/modules/common/confirm.coffee b/app/coffee/modules/common/confirm.coffee
index 6f48616d..3c97759b 100644
--- a/app/coffee/modules/common/confirm.coffee
+++ b/app/coffee/modules/common/confirm.coffee
@@ -59,11 +59,11 @@ class ConfirmService extends taiga.Service
         el = angular.element(lightboxSelector)
 
         # Render content
-        el.find(".title").text(title) if title
-        el.find(".subtitle").text(subtitle) if subtitle
+        el.find(".title").text(title || '')
+        el.find(".subtitle").text(subtitle || '')
         if message
             message = @filter('textToHTML')(message)
-            el.find(".message").html(message)
+        el.find(".message").html(message || '')
 
         # Assign event handlers
         el.on "click.confirm-dialog", ".button-green", debounce 2000, (event) =>