diff --git a/drivers/net/wireless/ipw2100.h b/drivers/net/wireless/ipw2100.h
index 948d426..6f0b40f 100644
--- a/drivers/net/wireless/ipw2100.h
+++ b/drivers/net/wireless/ipw2100.h
@@ -41,6 +41,10 @@
 
 #include <net/ieee80211.h>
 
+#ifdef CONFIG_IPW2100_MONITOR
+#include <net/ieee80211_radiotap.h>
+#endif
+
 #include <linux/workqueue.h>
 
 struct ipw2100_priv;