diff --git a/openwrt/target/linux/package/madwifi/patches/105-radiotap_endian_fix.patch b/openwrt/target/linux/package/madwifi/patches/105-radiotap_endian_fix.patch
new file mode 100644
index 0000000000..ad3fca9f29
--- /dev/null
+++ b/openwrt/target/linux/package/madwifi/patches/105-radiotap_endian_fix.patch
@@ -0,0 +1,21 @@
+diff -ruN madwifi-ng-r1451-20060212/net80211/ieee80211_monitor.c madwifi-ng-r1451-20060212-patch/net80211/ieee80211_monitor.c
+--- madwifi-ng-r1451-20060212/net80211/ieee80211_monitor.c	2006-02-01 15:07:11.000000000 -0500
++++ madwifi-ng-r1451-20060212-patch/net80211/ieee80211_monitor.c	2006-02-21 02:42:30.000000000 -0500
+@@ -296,7 +296,7 @@
+ 					sizeof(struct ath_tx_radiotap_header));
+ 				memset(th, 0, sizeof(struct ath_tx_radiotap_header));
+ 				th->wt_ihdr.it_version = 0;
+-				th->wt_ihdr.it_len = sizeof(struct ath_tx_radiotap_header);
++				th->wt_ihdr.it_len = __constant_cpu_to_le16(sizeof(struct ath_tx_radiotap_header));
+ 				th->wt_ihdr.it_present = ATH_TX_RADIOTAP_PRESENT;
+ 				th->wt_flags = 0;
+ 				th->wt_rate = rate;
+@@ -315,7 +315,7 @@
+ 					sizeof(struct ath_rx_radiotap_header));
+ 				memset(th, 0, sizeof(struct ath_rx_radiotap_header));
+ 				th->wr_ihdr.it_version = 0;
+-				th->wr_ihdr.it_len = sizeof(struct ath_rx_radiotap_header);
++				th->wr_ihdr.it_len = __constant_cpu_to_le16(sizeof(struct ath_tx_radiotap_header));
+ 				th->wr_ihdr.it_present = ATH_RX_RADIOTAP_PRESENT;
+ 				th->wr_flags = 0;
+ 				th->wr_rate = rate;