diff --git a/arch/sim/src/sim/sim_switchcontext.c b/arch/sim/src/sim/sim_switchcontext.c
index 4a10d0cd818..0693138cce4 100644
--- a/arch/sim/src/sim/sim_switchcontext.c
+++ b/arch/sim/src/sim/sim_switchcontext.c
@@ -70,10 +70,6 @@ void up_switch_context(struct tcb_s *tcb, struct tcb_s *rtcb)
 
       sim_savestate(rtcb->xcp.regs);
 
-      /* Restore the cpu lock */
-
-      restore_critical_section(tcb, this_cpu());
-
       /* Then switch contexts */
 
       sim_restorestate(tcb->xcp.regs);