diff --git a/suunto_vyper2.h b/suunto_vyper2.h
index 53f8099..2c89f7f 100644
--- a/suunto_vyper2.h
+++ b/suunto_vyper2.h
@@ -16,6 +16,8 @@ int suunto_vyper2_close (vyper2 *device);
 
 int suunto_vyper2_read_version (vyper2 *device, unsigned char data[], unsigned int size);
 
+int suunto_vyper2_reset_maxdepth (vyper2 *device);
+
 int suunto_vyper2_read_memory (vyper2 *device, unsigned int address, unsigned char data[], unsigned int size);
 
 int suunto_vyper2_write_memory (vyper2 *device, unsigned int address, const unsigned char data[], unsigned int size);