diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c
index 0996d59750ff..ed3ab7b699a3 100644
--- a/kernel/trace/trace_boot.c
+++ b/kernel/trace/trace_boot.c
@@ -233,8 +233,8 @@ trace_boot_init_events(struct trace_array *tr, struct xbc_node *node)
 	if (!node)
 		return;
 	/* per-event key starts with "event.GROUP.EVENT" */
-	xbc_node_for_each_child(node, gnode)
-		xbc_node_for_each_child(gnode, enode)
+	xbc_node_for_each_subkey(node, gnode)
+		xbc_node_for_each_subkey(gnode, enode)
 			trace_boot_init_one_event(tr, gnode, enode);
 }
 #else
@@ -315,7 +315,7 @@ trace_boot_init_instances(struct xbc_node *node)
 	if (!node)
 		return;
 
-	xbc_node_for_each_child(node, inode) {
+	xbc_node_for_each_subkey(node, inode) {
 		p = xbc_node_get_data(inode);
 		if (!p || *p == '\0')
 			continue;