diff --git a/bacnet-stack/demo/server/Makefile b/bacnet-stack/demo/server/Makefile
index 6b43ab50..64b966b7 100644
--- a/bacnet-stack/demo/server/Makefile
+++ b/bacnet-stack/demo/server/Makefile
@@ -31,6 +31,7 @@ SRCS = server.c \
        $(BACNET_HANDLER)/h_arf.c  \
        $(BACNET_HANDLER)/h_rd.c  \
        $(BACNET_HANDLER)/h_dcc.c  \
+       $(BACNET_HANDLER)/h_ts.c  \
        $(BACNET_HANDLER)/h_whohas.c  \
        $(BACNET_HANDLER)/s_ihave.c  \
        $(BACNET_OBJECT)/device.c \
@@ -55,6 +56,7 @@ SRCS = server.c \
        $(BACNET_ROOT)/arf.c \
        $(BACNET_ROOT)/rd.c \
        $(BACNET_ROOT)/dcc.c \
+       $(BACNET_ROOT)/timesync.c \
        $(BACNET_ROOT)/abort.c \
        $(BACNET_ROOT)/reject.c \
        $(BACNET_ROOT)/bacerror.c \