diff --git a/Kbuild b/Kbuild
index b78f612..646d0e9 100644
--- a/Kbuild
+++ b/Kbuild
@@ -553,7 +553,8 @@
                 -DWLAN_BUG_ON_SKB_ERROR \
                 -DWLAN_DXE_LOW_RESOURCE_TIMER \
                 -DWLAN_LOGGING_SOCK_SVC_ENABLE \
-                -DWLAN_FEATURE_LINK_LAYER_STATS
+                -DWLAN_FEATURE_LINK_LAYER_STATS \
+                -DWLAN_FEATURE_EXTSCAN
 
 ifneq ($(CONFIG_PRONTO_WLAN),)
 CDEFINES += -DWCN_PRONTO