diff --git a/sound/soc/nuc900/nuc900-audio.h b/sound/soc/nuc900/nuc900-audio.h
index aeed8ea..59f7e8e 100644
--- a/sound/soc/nuc900/nuc900-audio.h
+++ b/sound/soc/nuc900/nuc900-audio.h
@@ -110,4 +110,6 @@
 
 };
 
+extern struct nuc900_audio *nuc900_ac97_data;
+
 #endif /*end _NUC900_AUDIO_H */