diff --git a/Kbuild b/Kbuild
index f2e6740..ca2f403 100644
--- a/Kbuild
+++ b/Kbuild
@@ -643,6 +643,8 @@
 CDEFINES += -DCONFIG_ENABLE_LINUX_REG
 endif
 
+CDEFINES += -DFEATURE_WLAN_CH_AVOID
+
 # Fix build for GCC 4.7
 EXTRA_CFLAGS += -Wno-maybe-uninitialized -Wno-unused-function