diff --git a/CHANGES b/CHANGES
index 309e8b7..85e2296 100644
--- a/CHANGES
+++ b/CHANGES
@@ -10,6 +10,7 @@ Galène 0.4.1 (unreleased):
     logged in, and will be required for new authorisation schemes.
   * Allow scrolling of the login dialog, useful on small devices.
   * Fixed a typo that prevented the group name from being displayed.
+  * Made failed videos more visible.
 
 5 September 2021: Galène 0.4
 
diff --git a/static/galene.css b/static/galene.css
index 21e81ba..736eaa92d 100644
--- a/static/galene.css
+++ b/static/galene.css
@@ -913,7 +913,7 @@ h1 {
 }
 
 .media-failed {
-    opacity: 0.7;
+    filter: grayscale(0.5) contrast(0.5);
 }
 
 .mirror {