diff --git a/bacnet-stack/demo/whohas/Makefile b/bacnet-stack/demo/whohas/Makefile
index c48d1283..f276cb59 100644
--- a/bacnet-stack/demo/whohas/Makefile
+++ b/bacnet-stack/demo/whohas/Makefile
@@ -28,6 +28,7 @@ SRCS = main.c \
        $(BACNET_HANDLER)/noserv.c \
        $(BACNET_HANDLER)/h_whois.c \
        $(BACNET_HANDLER)/h_ihave.c \
+       $(BACNET_HANDLER)/h_iam.c \
        $(BACNET_HANDLER)/h_rp.c \
        $(BACNET_HANDLER)/s_ihave.c  \
        $(BACNET_HANDLER)/s_whois.c  \