diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index c00a7daaa..aaf1b3e 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1871,7 +1871,8 @@
 		    req->channels[hwsim->scan_chan_idx]->center_freq);
 
 	hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
-	if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
+	if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
+				      IEEE80211_CHAN_RADAR) ||
 	    !req->n_ssids) {
 		dwell = 120;
 	} else {