diff --git a/Kbuild b/Kbuild
index ad45cfb02b9c..37fa0653df50 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2581,6 +2581,7 @@ cppflags-$(CONFIG_WLAN_FEATURE_TWT) += -DWLAN_SUPPORT_TWT
 ifdef CONFIG_WLAN_TWT_SAP_STA_COUNT
 ccflags-y += -DWLAN_TWT_SAP_STA_COUNT=$(CONFIG_WLAN_TWT_SAP_STA_COUNT)
 endif
+cppflags-$(CONFIG_WLAN_TWT_SAP_PDEV_COUNT) += -DWLAN_TWT_AP_PDEV_COUNT_NUM_PHY
 cppflags-$(CONFIG_WLAN_DISABLE_EXPORT_SYMBOL) += -DWLAN_DISABLE_EXPORT_SYMBOL
 cppflags-$(CONFIG_WIFI_POS_CONVERGED) += -DWIFI_POS_CONVERGED
 cppflags-$(CONFIG_WIFI_POS_LEGACY) += -DFEATURE_OEM_DATA_SUPPORT