diff --git a/src/css/3p-filters.css b/src/css/3p-filters.css
index 483c62274..2024d18d5 100644
--- a/src/css/3p-filters.css
+++ b/src/css/3p-filters.css
@@ -15,7 +15,8 @@ body {
 #buttonUpdate.active {
     pointer-events: none;
     }
-#buttonUpdate.active .fa-icon svg {
+#buttonUpdate.active .fa-icon svg,
+body.working #buttonUpdate:not(.disabled) .fa-icon svg {
     animation: spin 1s linear infinite;
     transform-origin: 50%;
     }
diff --git a/src/js/3p-filters.js b/src/js/3p-filters.js
index c59365fd7..8441df9da 100644
--- a/src/js/3p-filters.js
+++ b/src/js/3p-filters.js
@@ -286,14 +286,14 @@ const renderFilterLists = ( ) => {
 /******************************************************************************/
 
 const renderWidgets = ( ) => {
+    const updating = dom.cl.has(dom.body, 'updating');
+    const hasObsolete = qs$('#lists .listEntry.checked.obsolete:not(.toRemove)') !== null;
     dom.cl.toggle('#buttonApply', 'disabled',
         filteringSettingsHash === hashFromCurrentFromSettings()
     );
-    const updating = dom.cl.has(dom.body, 'updating');
     dom.cl.toggle('#buttonUpdate', 'active', updating);
     dom.cl.toggle('#buttonUpdate', 'disabled',
-        updating === false &&
-        qs$('#lists .listEntry.checked.obsolete:not(.toRemove)') === null
+        updating === false && hasObsolete === false
     );
 };