diff --git a/src/hw_ostc_parser.c b/src/hw_ostc_parser.c
index 48eae3d..2a43dee 100644
--- a/src/hw_ostc_parser.c
+++ b/src/hw_ostc_parser.c
@@ -22,6 +22,7 @@
 #include <stdlib.h>
 
 #include <libdivecomputer/hw_ostc.h>
+#include <libdivecomputer/hw_ostc3.h>
 #include "libdivecomputer/units.h"
 
 #include "context-private.h"