diff --git a/bacnet-stack/ports/at91sam7s/main.c b/bacnet-stack/ports/at91sam7s/main.c
index 5a40edef..75ebd515 100644
--- a/bacnet-stack/ports/at91sam7s/main.c
+++ b/bacnet-stack/ports/at91sam7s/main.c
@@ -40,6 +40,7 @@
 #include "dcc.h"
 #include "iam.h"
 #include "handlers.h"
+#include "client.h"
 #include "device.h"
 #include "dcc.h"
 #include "iam.h"