diff --git a/engine.c b/engine.c
index d5bd29f..0514b04 100644
--- a/engine.c
+++ b/engine.c
@@ -370,7 +370,8 @@ void* save_load_thread_func(void *arg) {
             }
         } else {
             // No requests, sleep a bit to avoid busy-waiting
-            usleep(1000);  // 1ms
+            struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 };  // 1ms
+            nanosleep(&ts, NULL);
         }
     }