diff --git a/package/mac80211/patches/512-ath9k_channelbw_debugfs.patch b/package/mac80211/patches/512-ath9k_channelbw_debugfs.patch
index d4087a0b28..88b6d29832 100644
--- a/package/mac80211/patches/512-ath9k_channelbw_debugfs.patch
+++ b/package/mac80211/patches/512-ath9k_channelbw_debugfs.patch
@@ -51,7 +51,7 @@
 +		return -EINVAL;
 +
 +	sc->chan_bw = chan_bw;
-+	if (!(sc->sc_flags & SC_OP_INVALID))
++	if (!test_bit(SC_OP_INVALID, &sc->sc_flags))
 +		ath9k_config(sc->hw, IEEE80211_CONF_CHANGE_CHANNEL);
 +
 +	return count;