diff --git a/planner.c b/planner.c
index c8f9fe462..3efa702d0 100644
--- a/planner.c
+++ b/planner.c
@@ -948,6 +948,7 @@ int plan(struct diveplan *diveplan, char **cached_datap, bool is_planner, bool s
 
 	free(stoplevels);
 	free(gaschanges);
+	return error;
 }
 
 /*