diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index c1c9733..58d7ef6 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -161,7 +161,7 @@
 
 	/** Wlan adapter data structure*/
 	/** STATUS variables */
-	u8 fwreleasenumber[4];
+	u32 fwrelease;
 	u32 fwcapinfo;
 	/* protected with big lock */