diff --git a/sys/dev/ath/if_ath_ioctl.c b/sys/dev/ath/if_ath_ioctl.c
index 1128c18eea27..a7ba0e42df3e 100644
--- a/sys/dev/ath/if_ath_ioctl.c
+++ b/sys/dev/ath/if_ath_ioctl.c
@@ -296,6 +296,8 @@ ath_ioctl(struct ieee80211com *ic, u_long cmd, void *data)
 		return (ath_ioctl_spectral(sc, data));
 	case SIOCGATHNODERATESTATS:
 		return (ath_ioctl_ratestats(sc, data));
+	case SIOCGATHBTCOEX:
+		return (ath_btcoex_ioctl(sc, data));
 	default:
 		/*
 		 * This signals the net80211 layer that we didn't handle this
diff --git a/sys/dev/ath/if_athioctl.h b/sys/dev/ath/if_athioctl.h
index 9f879893356f..f16f3cbbca25 100644
--- a/sys/dev/ath/if_athioctl.h
+++ b/sys/dev/ath/if_athioctl.h
@@ -447,4 +447,9 @@ struct ath_tx_radiotap_header {
 #define	SPECTRAL_CONTROL_ENABLE_AT_RESET	8
 #define	SPECTRAL_CONTROL_DISABLE_AT_RESET	9
 
+/*
+ * Bluetooth coexistence control parameters
+ */
+#define	SIOCGATHBTCOEX		_IOWR('i', 152, struct ath_diag)
+
 #endif /* _DEV_ATH_ATHIOCTL_H */