diff --git a/drivers/net/wireless/libertas/join.c b/drivers/net/wireless/libertas/join.c
index 78e398d6f5f3..f71c172101a8 100644
--- a/drivers/net/wireless/libertas/join.c
+++ b/drivers/net/wireless/libertas/join.c
@@ -18,7 +18,7 @@
 #include "assoc.h"
 
 /* Supported rates for ad-hoc B mode */
-u8 adhoc_rates_b[5] = { 0x02, 0x04, 0x0b, 0x16, 0x00 };
+static u8 adhoc_rates_b[5] = { 0x02, 0x04, 0x0b, 0x16, 0x00 };
 
 
 /**