diff --git a/iot_sim/Kbuild b/iot_sim/Kbuild
index 7fe9231550..329b1dc9a7 100644
--- a/iot_sim/Kbuild
+++ b/iot_sim/Kbuild
@@ -19,6 +19,7 @@ INCS += -I$(obj)/$(DEPTH)/cmn_dev/umac/cmn_services/mgmt_txrx/dispatcher/inc
 INCS += -I$(obj)/$(DEPTH)/cmn_dev/umac/regulatory/dispatcher/inc
 INCS += -I$(obj)/$(DEPTH)/umac/son/dispatcher/inc
 INCS += -I$(obj)/$(DEPTH)/umac/son/os/linux
+INCS += -I$(obj)/$(DEPTH)/cmn_dev/umac/cmn_services/regulatory/inc
 INCS += -I$(obj)/$(DEPTH)/cmn_dev/umac/dfs/dispatcher/inc
 INCS += -I$(obj)/$(DEPTH)/cmn_dev/os_if/linux/scan/inc
 INCS += -I$(obj)/$(DEPTH)/cmn_dev/target_if/direct_buf_rx/inc