diff --git a/dkms.conf b/dkms.conf
index fe09b6b..2e47ecd 100644
--- a/dkms.conf
+++ b/dkms.conf
@@ -1,5 +1,5 @@
 PACKAGE_NAME="realtek-rtl88xxau"
-PACKAGE_VERSION="5.2.20.2~20180724"
+PACKAGE_VERSION="5.2.20.2~20180730"
 BUILT_MODULE_NAME[0]="8812au"
 PROCS_NUM=`nproc`
 [ $PROCS_NUM -gt 16 ] && PROCS_NUM=16
diff --git a/os_dep/linux/wifi_regd.c b/os_dep/linux/wifi_regd.c
index 796d27b..03a6fff 100644
--- a/os_dep/linux/wifi_regd.c
+++ b/os_dep/linux/wifi_regd.c
@@ -334,8 +334,13 @@ static void _rtw_reg_apply_flags(struct wiphy *wiphy)
 				if (ch)
 					ch->flags &= ~(IEEE80211_CHAN_DISABLED|IEEE80211_CHAN_NO_HT40PLUS|
 						IEEE80211_CHAN_NO_HT40MINUS|IEEE80211_CHAN_NO_80MHZ|
-						IEEE80211_CHAN_NO_160MHZ);
-					//ch->flags = IEEE80211_CHAN_DISABLED;
+						IEEE80211_CHAN_NO_160MHZ|
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0))
+						IEEE80211_CHAN_NO_IBSS|IEEE80211_CHAN_PASSIVE_SCAN);
+#else
+						IEEE80211_CHAN_NO_IR);
+#endif
+						//ch->flags = IEEE80211_CHAN_DISABLED;
 			}
 		}
 	}