diff --git a/package/broadcom-wl/files/lib/wifi/broadcom.sh b/package/broadcom-wl/files/lib/wifi/broadcom.sh
index c499ca8c618..79c168079f1 100644
--- a/package/broadcom-wl/files/lib/wifi/broadcom.sh
+++ b/package/broadcom-wl/files/lib/wifi/broadcom.sh
@@ -145,7 +145,7 @@ enable_broadcom() {
 						done
 					;;
 					"");;
-					*) append vif_pre_up "wepkey 1,$key" "$N";;
+					*) append vif_pre_up "wepkey =1,$key" "$N";;
 				esac
 			;;
 			*psk*|*PSK*)