diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 7e5cd15e59ad..c44f38895fbe 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -1161,7 +1161,7 @@ struct airo_info {
 	   use the high bit to mark whether it is in use. */
 #define MAX_FIDS 6
 #define MPI_MAX_FIDS 1
-	int                           fids[MAX_FIDS];
+	u32                           fids[MAX_FIDS];
 	ConfigRid config;
 	char keyindex; // Used with auto wep
 	char defindex; // Used with auto wep