diff --git a/platforms/common/px4_work_queue/WorkItemSingleShot.cpp b/platforms/common/px4_work_queue/WorkItemSingleShot.cpp
index 77d24e2c2a87..7b2a52f2b47a 100644
--- a/platforms/common/px4_work_queue/WorkItemSingleShot.cpp
+++ b/platforms/common/px4_work_queue/WorkItemSingleShot.cpp
@@ -48,6 +48,7 @@ WorkItemSingleShot::WorkItemSingleShot(const px4::WorkItem &work_item, worker_me
 	: px4::WorkItem("<single_shot>", work_item), _argument(argument), _method(method)
 {
 	px4_sem_init(&_sem, 0, 0);
+	px4_sem_setprotocol(&_sem, SEM_PRIO_NONE);
 }
 
 WorkItemSingleShot::~WorkItemSingleShot()