diff --git a/src/config/options.h b/src/config/options.h
index 6bcfc9fb..4210c2aa 100644
--- a/src/config/options.h
+++ b/src/config/options.h
@@ -203,6 +203,7 @@ struct option {
 	union option_value value;
 	const char *desc;
 	const char *capt;
+	unsigned int node;
 
 	struct option *root;