diff --git a/Kbuild b/Kbuild
index f09fa79..b532f3e 100644
--- a/Kbuild
+++ b/Kbuild
@@ -1107,6 +1107,11 @@
 CLD_TARGET_IF_OBJ += $(CLD_TARGET_IF_DIR)/action_oui/src/target_if_action_oui.o
 endif
 
+ifeq ($(CONFIG_FEATURE_WLAN_TIME_SYNC_FTM), y)
+CLD_TARGET_IF_INC += -I$(WLAN_ROOT)/$(CLD_TARGET_IF_DIR)/ftm_time_sync/inc
+CLD_TARGET_IF_OBJ += $(CLD_TARGET_IF_DIR)/ftm_time_sync/src/target_if_ftm_time_sync.o
+endif
+
 ############## UMAC P2P ###########
 P2P_DIR := components/p2p
 P2P_CORE_OBJ_DIR := $(P2P_DIR)/core/src