diff --git a/Kbuild b/Kbuild
index f99d66e..742053d 100644
--- a/Kbuild
+++ b/Kbuild
@@ -3214,6 +3214,8 @@
 cppflags-$(CONFIG_WLAN_CUSTOM_DSCP_UP_MAP) += -DWLAN_CUSTOM_DSCP_UP_MAP
 cppflags-$(CONFIG_WLAN_SEND_DSCP_UP_MAP_TO_FW) += -DWLAN_SEND_DSCP_UP_MAP_TO_FW
 
+cppflags-$(CONFIG_HIF_CPU_PERF_AFFINE_MASK) += -DHIF_CPU_PERF_AFFINE_MASK
+
 KBUILD_CPPFLAGS += $(cppflags-y)
 
 # Currently, for versions of gcc which support it, the kernel Makefile