diff --git a/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_attach.c b/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_attach.c
index 478417cd971f..51421154b952 100644
--- a/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_attach.c
+++ b/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_attach.c
@@ -640,6 +640,12 @@ ar9300_attach(u_int16_t devid, HAL_SOFTC sc, HAL_BUS_TAG st,
     /* FreeBSD: to make OTP work for now, provide this.. */
     AH9300(ah)->ah_cal_mem = ath_hal_malloc(HOST_CALDATA_SIZE);
 
+    /*
+     * If eepromdata is not NULL, copy it it into ah_cal_mem.
+     */
+    if (eepromdata != NULL)
+        OS_MEMCPY(AH9300(ah)->ah_cal_mem, eepromdata, HOST_CALDATA_SIZE);
+
     /* XXX FreeBSD: enable RX mitigation */
     ah->ah_config.ath_hal_intr_mitigation_rx = 1;