diff --git a/libwav.h b/libwav.h
index 6419636..017b273 100644
--- a/libwav.h
+++ b/libwav.h
@@ -1,8 +1,6 @@
 #ifndef __LIBWAV_H__
 #define __LIBWAV_H__
 
-#define WAV_CHUNK_LEN 512
-
 // "RIFF"
 #define WAV_CHUNKID_RIFF 0x46464952