diff --git a/mod/item.php b/mod/item.php
index ac5b11c4d9..51bbc76e72 100644
--- a/mod/item.php
+++ b/mod/item.php
@@ -835,7 +835,7 @@ function item_post(App $a) {
 	// When we are doing some forum posting via ! we have to start the notifier manually.
 	// These kind of posts don't initiate the notifier call in the item class.
 	if ($only_to_forum) {
-		Worker::add(PRIORITY_HIGH, "Notifier", Delivery::POST, $post_id);
+		Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 	}
 
 	Logger::log('post_complete');
diff --git a/src/Core/Worker.php b/src/Core/Worker.php
index 225a928008..236f8b4084 100644
--- a/src/Core/Worker.php
+++ b/src/Core/Worker.php
@@ -1125,7 +1125,8 @@ class Worker
 		}
 
 		$priority = PRIORITY_MEDIUM;
-		$dont_fork = Config::get("system", "worker_dont_fork", false);
+		// Don't fork from frontend tasks by default
+		$dont_fork = Config::get("system", "worker_dont_fork", false) || !\get_app()->isBackend();
 		$created = DateTimeFormat::utcNow();
 		$force_priority = false;