diff --git a/src/system/kernel/scheduler/scheduler_affine.cpp b/src/system/kernel/scheduler/scheduler_affine.cpp
index 34e996cac8..84d0ea6b6f 100644
--- a/src/system/kernel/scheduler/scheduler_affine.cpp
+++ b/src/system/kernel/scheduler/scheduler_affine.cpp
@@ -331,7 +331,7 @@ affine_set_thread_priority(struct thread *thread, int32 priority)
 	thread = dequeue_from_run_queue(prev, targetCPU);
 
 	// set priority and re-insert
-	thread->priority = priority;
+	thread->priority = thread->next_priority = priority;
 	affine_enqueue_in_run_queue(thread);
 }
 
diff --git a/src/system/kernel/scheduler/scheduler_simple.cpp b/src/system/kernel/scheduler/scheduler_simple.cpp
index f7d4e1acc5..e8b537adf6 100644
--- a/src/system/kernel/scheduler/scheduler_simple.cpp
+++ b/src/system/kernel/scheduler/scheduler_simple.cpp
@@ -195,7 +195,7 @@ simple_set_thread_priority(struct thread *thread, int32 priority)
 		sRunQueue = item->queue_next;
 
 	// set priority and re-insert
-	thread->priority = priority;
+	thread->priority = thread->next_priority = priority;
 	simple_enqueue_in_run_queue(thread);
 }