diff --git a/Kbuild b/Kbuild
index 622a66f..08f8021 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2688,6 +2688,7 @@
 endif
 
 cppflags-$(CONFIG_WLAN_CLD_PM_QOS) += -DCLD_PM_QOS
+cppflags-$(CONFIG_REO_DESC_DEFER_FREE) += -DREO_DESC_DEFER_FREE
 cppflags-$(CONFIG_WLAN_FEATURE_11AX) += -DWLAN_FEATURE_11AX
 cppflags-$(CONFIG_WLAN_FEATURE_11AX) += -DWLAN_FEATURE_11AX_BSS_COLOR
 cppflags-$(CONFIG_WLAN_FEATURE_11AX) += -DSUPPORT_11AX_D3