diff --git a/core/serial_ftdi.c b/core/serial_ftdi.c
index bfa23b814..6471c2f0d 100644
--- a/core/serial_ftdi.c
+++ b/core/serial_ftdi.c
@@ -43,6 +43,7 @@
 //#define SYSERROR(context, errcode)	ERROR(__FILE__ ":" __LINE__ ": %s", strerror(errcode))
 #define SYSERROR(context, errcode)	;
 
+#include "libdivecomputer.h"
 #include <libdivecomputer/custom_io.h>
 #include <libdivecomputer/context.h>
 
diff --git a/libdivecomputer b/libdivecomputer
index db70c581a..8ae735a4d 160000
--- a/libdivecomputer
+++ b/libdivecomputer
@@ -1 +1 @@
-Subproject commit db70c581a621814feb881494c890ae8a49da709a
+Subproject commit 8ae735a4d70307ebe2a42d315697f02ce71dbe88