diff --git a/static/styles/zulip.css b/static/styles/zulip.css
index d6d7477731..1eeada6f57 100644
--- a/static/styles/zulip.css
+++ b/static/styles/zulip.css
@@ -1122,10 +1122,10 @@ just a temporary hack.
 }
 
 .unread_marker.slow_fade {
-    -webkit-transition: all 0.3s ease-out;
-    -moz-transition: all 0.3s ease-out;
-    -o-transition: all 0.3s ease-out;
-    transition: all 0.3s ease-out;
+    -webkit-transition: all 2s ease-out;
+    -moz-transition: all 2s ease-out;
+    -o-transition: all 2s ease-out;
+    transition: all 2s ease-out;
 }
 
 .unread_marker.fast_fade {