diff --git a/Kbuild b/Kbuild
index 3ed8e5cfecf2..64a02f9aa567 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2674,6 +2674,8 @@ ifdef CONFIG_FW_THERMAL_THROTTLE
 ccflags-y += -DFW_THERMAL_THROTTLE_SUPPORT
 endif
 
+cppflags-y += -DFEATURE_NBUFF_REPLENISH_TIMER
+
 ccflags-$(CONFIG_HASTINGS_BT_WAR) += -DHASTINGS_BT_WAR
 
 KBUILD_CPPFLAGS += $(cppflags-y)