diff --git a/Kbuild b/Kbuild
index 80f7d44..ef00a96 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2087,6 +2087,7 @@
 cppflags-$(CONFIG_WLAN_TX_FLOW_CONTROL_V2) += -DQCA_LL_TX_FLOW_CONTROL_V2
 cppflags-$(CONFIG_WLAN_TX_FLOW_CONTROL_V2) += -DQCA_LL_TX_FLOW_GLOBAL_MGMT_POOL
 cppflags-$(CONFIG_WLAN_TX_FLOW_CONTROL_LEGACY) += -DQCA_LL_LEGACY_TX_FLOW_CONTROL
+cppflags-$(CONFIG_WLAN_PDEV_TX_FLOW_CONTROL) += -DQCA_LL_PDEV_TX_FLOW_CONTROL
 
 ifeq ($(BUILD_DEBUG_VERSION), y)
 cppflags-y +=	-DWLAN_DEBUG