diff --git a/sys/conf/options b/sys/conf/options
index 145b33b5f90..81fb881aaeb 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -768,6 +768,7 @@ ATH_TXBUF		opt_ath.h
 ATH_RXBUF		opt_ath.h
 ATH_DIAGAPI		opt_ath.h
 ATH_TX99_DIAG		opt_ath.h
+ATH_ENABLE_11N		opt_ah.h
 
 # options for the Atheros hal
 AH_SUPPORT_AR5416	opt_ah.h
@@ -784,7 +785,6 @@ AH_NEED_DESC_SWAP	opt_ah.h
 AH_USE_INIPDGAIN	opt_ah.h
 AH_MAXCHAN		opt_ah.h
 AH_RXCFG_SDMAMW_4BYTES	opt_ah.h
-AH_ENABLE_11N		opt_ah.h
 
 # options for the Broadcom BCM43xx driver (bwi)
 BWI_DEBUG		opt_bwi.h
diff --git a/sys/dev/ath/if_ath.c b/sys/dev/ath/if_ath.c
index 9ecf51f548c..5344e75dca2 100644
--- a/sys/dev/ath/if_ath.c
+++ b/sys/dev/ath/if_ath.c
@@ -612,7 +612,7 @@ ath_attach(u_int16_t devid, struct ath_softc *sc)
 	 * Don't think of doing that unless you know what you're doing.
 	 */
 
-#ifdef	AH_ENABLE_11N
+#ifdef	ATH_ENABLE_11N
 	/*
 	 * Query HT capabilities
 	 */
diff --git a/sys/dev/ath/if_athvar.h b/sys/dev/ath/if_athvar.h
index d096f5026da..4daa2e1347a 100644
--- a/sys/dev/ath/if_athvar.h
+++ b/sys/dev/ath/if_athvar.h
@@ -46,7 +46,7 @@
 /*
  * 802.11n requires more TX and RX buffers to do AMPDU.
  */
-#ifdef	AH_ENABLE_11N
+#ifdef	ATH_ENABLE_11N
 #define	ATH_TXBUF	512
 #define	ATH_RXBUF	512
 #endif