diff --git a/arch/sim/Kconfig b/arch/sim/Kconfig
index 1d42f1c83b..fd44688dd2 100644
--- a/arch/sim/Kconfig
+++ b/arch/sim/Kconfig
@@ -140,6 +140,13 @@ config SIM_WALLTIME_SIGNAL
 
 endchoice
 
+config SIM_LOOPTASK_PRIORITY
+	int "looptask priority"
+	default SCHED_HPWORKPRIORITY if SCHED_HPWORK
+	default 255 if !SCHED_HPWORK
+	---help---
+		Looptask priority
+
 config SIM_LOOPTASK_INTERVAL
 	int "looptask interval in us"
 	default 10000
diff --git a/arch/sim/src/sim/sim_initialize.c b/arch/sim/src/sim/sim_initialize.c
index 6f5718a7a6..4b5e292a3b 100644
--- a/arch/sim/src/sim/sim_initialize.c
+++ b/arch/sim/src/sim/sim_initialize.c
@@ -310,7 +310,7 @@ void up_initialize(void)
   sim_usbhost_initialize();
 #endif
 
-  kthread_create("loop_task", SCHED_PRIORITY_MAX,
+  kthread_create("loop_task", CONFIG_SIM_LOOPTASK_PRIORITY,
                  CONFIG_DEFAULT_TASK_STACKSIZE,
                  sim_loop_task, NULL);
 }