diff --git a/include/wifi.h b/include/wifi.h
index 04b53d5..f071dd0 100644
--- a/include/wifi.h
+++ b/include/wifi.h
@@ -1027,12 +1027,15 @@ typedef enum _HT_CAP_AMPDU_DENSITY {
 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 18, 0))
 /*
  * A-PMDU buffer sizes
  * 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_HT 0x40
+#define IEEE80211_MAX_AMPDU_BUF 0x100
+#else
 #define IEEE80211_MAX_AMPDU_BUF_HT 0x40
 #endif