diff --git a/src/threads/thread.c b/src/threads/thread.c
index 70d5667..aa9761d 100644
--- a/src/threads/thread.c
+++ b/src/threads/thread.c
@@ -372,11 +372,15 @@ thread_yield (void)
   if (cur != idle_thread)
     {
       if (thread_mlfqs)
+      {
         list_insert_ordered (&ready_list, &cur->elem, thread_priority_less,
                              NULL);
+      }
       else
+      {
         /* Insert the thread back into the ready list in priority order. */
         list_insert_ordered(&ready_list, &cur->elem, priority_more, NULL);
+      }
     }
 
   cur->status = THREAD_READY;
@@ -473,7 +477,7 @@ thread_update_recent_cpu (struct thread *t, void *aux UNUSED)
       = fp_add_int (fp_mul (recent_cpu_coeff, curr_recent_cpu), t->nice);
   // recent_cpu was updated, update priority.
   t->priority = calculate_bsd_priority (t->recent_cpu, t->nice);
-
+}
 /* Recalculates the effective priority of the current thread. */
 void
 thread_recalculate_priority (void)