diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 7bff1c1d6c8fddcb06ddadee9c631d7a68e44345..6e7a9d853191bfca34084a8eb9172ef7290324fb 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1125,6 +1125,11 @@ static void handle_channel_custom(struct wiphy *wiphy,
 			       regd);
 
 	if (r) {
+		REG_DBG_PRINT("cfg80211: Disabling freq %d MHz as custom "
+			      "regd has no rule that fits a %d MHz "
+			      "wide channel\n",
+			      chan->center_freq,
+			      KHZ_TO_MHZ(desired_bw_khz));
 		chan->flags = IEEE80211_CHAN_DISABLED;
 		return;
 	}