diff --git a/docs/code/progress/main.c b/docs/code/progress/main.c
index 56d99a212..f708bcee0 100644
--- a/docs/code/progress/main.c
+++ b/docs/code/progress/main.c
@@ -11,18 +11,17 @@ uv_async_t async;
 _Atomic double percentage;
 
 void fake_download(uv_work_t *req) {
-  int size = *((int *)req->data);
-  int downloaded = 0;
-  double pct;
-  while (downloaded < size) {
-    pct = downloaded * 100.0 / size;
-    atomic_store_explicit(&percentage, pct, memory_order_release);
-    uv_async_send(&async);
+    int size = *((int*) req->data);
+    int downloaded = 0;
+    while (downloaded < size) {
+        pct = downloaded * 100.0 / size;
+        atomic_store_explicit(&percentage, pct, memory_order_release);
+        uv_async_send(&async);
 
-    sleep(1);
-    downloaded += (200 + random()) % 1000; // can only download max
-                                           // 1000bytes/sec, but at least a 200;
-  }
+        sleep(1);
+        downloaded += (200+random())%1000; // can only download max 1000bytes/sec,
+                                           // but at least a 200;
+    }
 }
 
 void after(uv_work_t *req, int status) {