diff --git a/examples/sound-c/main.c b/examples/sound-c/main.c
index fecf2fb..ebb0623 100644
--- a/examples/sound-c/main.c
+++ b/examples/sound-c/main.c
@@ -20,25 +20,26 @@ static int run() {
       .height = H,
       .buf = buf,
   };
-	struct fenster_audio fa = {0};
+  struct fenster_audio fa = {0};
   fenster_open(&f);
-	fenster_audio_open(&fa);
+  fenster_audio_open(&fa);
   uint32_t t, u = 0;
-	float audio[FENSTER_AUDIO_BUFSZ];
+  float audio[FENSTER_AUDIO_BUFSZ];
   int64_t now = fenster_time();
   while (fenster_loop(&f) == 0) {
     t++;
-		int n = fenster_audio_available(&fa);
-		if (n > 0) {
-			for (int i = 0; i < n; i++) {
-				u++;
-				/*audio[i] = (rand() & 0xff)/256.f;*/
-				int x = u * 80/441;
-				audio[i] = ((((x >> 10) & 42) * x)&0xff)/256.f;
-			}
-			fenster_audio_write(&fa, audio, n);
-		}
-		if (f.keys[27]) break;
+    int n = fenster_audio_available(&fa);
+    if (n > 0) {
+      for (int i = 0; i < n; i++) {
+        u++;
+        /*audio[i] = (rand() & 0xff)/256.f;*/
+        int x = u * 80 / 441;
+        audio[i] = ((((x >> 10) & 42) * x) & 0xff) / 256.f;
+      }
+      fenster_audio_write(&fa, audio, n);
+    }
+    if (f.keys[27])
+      break;
 
     for (int i = 0; i < 320; i++) {
       for (int j = 0; j < 240; j++) {
@@ -54,11 +55,11 @@ static int run() {
     }
     int64_t time = fenster_time();
     if (time - now < 1000 / 60) {
-			fenster_sleep(time - now);
+      fenster_sleep(time - now);
     }
     now = time;
   }
-	fenster_audio_close(&fa);
+  fenster_audio_close(&fa);
   fenster_close(&f);
   return 0;
 }
diff --git a/fenster_audio.h b/fenster_audio.h
index 0af7f44..f9598ec 100644
--- a/fenster_audio.h
+++ b/fenster_audio.h
@@ -100,21 +100,26 @@ int snd_pcm_writei(void *, const void *, unsigned long);
 int snd_pcm_recover(void *, int, int);
 int snd_pcm_close(void *);
 FENSTER_API int fenster_audio_open(struct fenster_audio *fa) {
-  if (snd_pcm_open(&fa->pcm, "default", 0, 0)) return -1;
-  int fmt = (*(unsigned char *)(&(uint16_t){1}))?14:15;
+  if (snd_pcm_open(&fa->pcm, "default", 0, 0))
+    return -1;
+  int fmt = (*(unsigned char *)(&(uint16_t){1})) ? 14 : 15;
   return snd_pcm_set_params(fa->pcm, fmt, 3, 1, FENSTER_SAMPLE_RATE, 1, 100000);
 }
 FENSTER_API int fenster_audio_available(struct fenster_audio *fa) {
-  int n = snd_pcm_avail(fa->pcm); 
-  if (n < 0) snd_pcm_recover(fa->pcm, n, 0);
+  int n = snd_pcm_avail(fa->pcm);
+  if (n < 0)
+    snd_pcm_recover(fa->pcm, n, 0);
   return n;
 }
 FENSTER_API void fenster_audio_write(struct fenster_audio *fa, float *buf,
                                      size_t n) {
   int r = snd_pcm_writei(fa->pcm, buf, n);
-  if (r < 0) snd_pcm_recover(fa->pcm, r, 0);
+  if (r < 0)
+    snd_pcm_recover(fa->pcm, r, 0);
+}
+FENSTER_API void fenster_audio_close(struct fenster_audio *fa) {
+  snd_pcm_close(fa->pcm);
 }
-FENSTER_API void fenster_audio_close(struct fenster_audio *fa) { snd_pcm_close(fa->pcm); }
 #endif
 
 #endif /* FENSTER_HEADER */