diff --git a/templates/themes/ukko/ukko.js b/templates/themes/ukko/ukko.js
index b2668e0b..384338c2 100644
--- a/templates/themes/ukko/ukko.js
+++ b/templates/themes/ukko/ukko.js
@@ -73,6 +73,8 @@ $(document).ready(function() {
 					boardheader.insertBefore(thread);
 					addukkohide.call(boardheader);
 					$(document).trigger('new_post', thread);
+					// Make the post filter (if enabled) re-run on this page to consider new threads.
+					$(document).trigger('filter_page');
 				}
 				overflow.shift();
 			} else {
@@ -95,6 +97,8 @@ $(document).ready(function() {
 						boardheader.insertBefore(thread);
 						addukkohide.call(boardheader);
 						$(document).trigger('new_post', thread);
+						// Make the post filter (if enabled) re-run on this page to consider new threads.
+						$(document).trigger('filter_page');
 					}
 					overflow.shift();