diff --git a/Kbuild b/Kbuild
index bfcb392..f99d66e 100644
--- a/Kbuild
+++ b/Kbuild
@@ -3198,6 +3198,8 @@
 
 cppflags-$(CONFIG_RX_FISA) += -DWLAN_SUPPORT_RX_FISA
 
+cppflags-$(CONFIG_MORE_TX_DESC) += -DTX_TO_NPEERS_INC_TX_DESCS
+
 ccflags-$(CONFIG_HASTINGS_BT_WAR) += -DHASTINGS_BT_WAR
 
 cppflags-$(CONFIG_SLUB_DEBUG_ON) += -DHIF_CONFIG_SLUB_DEBUG_ON