diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c
index 86c14d18dc3f..10eaa6ebebbc 100644
--- a/sys/compat/linux/linux_misc.c
+++ b/sys/compat/linux/linux_misc.c
@@ -654,7 +654,9 @@ linux_times(struct proc *p, struct linux_times_args *args)
 #ifdef DEBUG
     printf("Linux-emul(%ld): times(*)\n", (long)p->p_pid);
 #endif
+    mtx_enter(&sched_lock, MTX_SPIN);
     calcru(p, &ru.ru_utime, &ru.ru_stime, NULL);
+    mtx_exit(&sched_lock, MTX_SPIN);
 
     tms.tms_utime = CONVTCK(ru.ru_utime);
     tms.tms_stime = CONVTCK(ru.ru_stime);