1 files changed, 1 insertions, 0 deletions
diff --git a/planner.h b/planner.h
index caecd513f..330d7df60 100644
--- a/planner.h
+++ b/planner.h
@@ -12,6 +12,7 @@ extern timestamp_t current_time_notz(void);
 extern void show_planned_dive(char **error_string_p);
 extern void set_last_stop(bool last_stop_6m);
 extern void get_gas_from_events(struct divecomputer *dc, int time, int *o2, int *he);
+extern int get_gasidx(struct dive *dive, int o2, int he);
 
 extern struct diveplan diveplan;
 extern struct dive *planned_dive;