1 files changed, 1 insertions, 1 deletions
diff --git a/dive.h b/dive.h
index d5dbdd2ee..d5681f163 100644
--- a/dive.h
+++ b/dive.h
@@ -800,7 +800,7 @@ extern void cache_deco_state(double, char **datap);
 extern double restore_deco_state(char *data);
 extern void nuclear_regeneration(double time);
 extern void vpmb_start_gradient();
-extern void vpmb_next_gradient(double deco_time);
+extern void vpmb_next_gradient(double deco_time, double surface_pressure);
 extern bool is_vpmb_ok(double pressure);
 extern void boyles_law(double first_stop_pressure, double next_stop_pressure);