diff --git a/modules/audio/audio_hw.c b/modules/audio/audio_hw.c
index 68b0d3a..35901e4 100644
--- a/modules/audio/audio_hw.c
+++ b/modules/audio/audio_hw.c
@@ -119,7 +119,7 @@
 static ssize_t out_write(struct audio_stream_out *stream, const void* buffer,
                          size_t bytes)
 {
-    ALOGV("out_write: bytes: %d", bytes);
+    ALOGV("out_write: bytes: %zu", bytes);
 
     /* XXX: fake timing for audio output */
     struct stub_stream_out *out = (struct stub_stream_out *)stream;
@@ -242,7 +242,7 @@
 static ssize_t in_read(struct audio_stream_in *stream, void* buffer,
                        size_t bytes)
 {
-    ALOGV("in_read: bytes %d", bytes);
+    ALOGV("in_read: bytes %zu", bytes);
 
     /* XXX: fake timing for audio input */
     struct stub_stream_in *in = (struct stub_stream_in *)stream;