diff --git a/miniaudio.h b/miniaudio.h
index 7f002f96..c28dce16 100644
--- a/miniaudio.h
+++ b/miniaudio.h
@@ -3744,7 +3744,6 @@ struct ma_device
             /*HANDLE*/ ma_handle hEventPlayback;
             /*HANDLE*/ ma_handle hEventCapture;
             ma_uint32 fragmentSizeInFrames;
-            ma_uint32 fragmentSizeInBytes;
             ma_uint32 iNextHeaderPlayback;             /* [0,periods). Used as an index into pWAVEHDRPlayback. */
             ma_uint32 iNextHeaderCapture;              /* [0,periods). Used as an index into pWAVEHDRCapture. */
             ma_uint32 headerFramesConsumedPlayback;    /* The number of PCM frames consumed in the buffer in pWAVEHEADER[iNextHeader]. */