More stereo work
diff --git a/src/opus_decoder.h b/src/opus_decoder.h
index c7a3be6..f4f012a 100644
--- a/src/opus_decoder.h
+++ b/src/opus_decoder.h
@@ -38,6 +38,7 @@
 struct OpusDecoder {
 	CELTDecoder *celt_dec;
 	void        *silk_dec;
+	int          channels;
 
     int          mode;
     int          bandwidth;