diff --git a/src/Providers/AddonServiceProvider.php b/src/Providers/AddonServiceProvider.php
index 09452ff139..c637764fd1 100644
--- a/src/Providers/AddonServiceProvider.php
+++ b/src/Providers/AddonServiceProvider.php
@@ -255,7 +255,9 @@ private function getEventListeners()
 
         foreach ($this->listen as $event => $listeners) {
             foreach ($listeners as $listener) {
-                $arr[$event][] = $listener;
+                if (! in_array($listener, $arr[$event] ?? [])) {
+                    $arr[$event][] = $listener;
+                }
             }
         }