diff --git a/include/wifi.h b/include/wifi.h
index 8719d01..d5a7516 100644
--- a/include/wifi.h
+++ b/include/wifi.h
@@ -1009,8 +1009,9 @@ typedef enum _HT_CAP_AMPDU_DENSITY {
  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
  */
 #define IEEE80211_MIN_AMPDU_BUF 0x8
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 19, 0)
 #define IEEE80211_MAX_AMPDU_BUF 0x40
-
+#endif
 
 /* Spatial Multiplexing Power Save Modes */
 #define WLAN_HT_CAP_SM_PS_STATIC		0