diff --git a/src/runtime/internal/dom.ts b/src/runtime/internal/dom.ts
index 8d99234c9d..234eca90a4 100644
--- a/src/runtime/internal/dom.ts
+++ b/src/runtime/internal/dom.ts
@@ -193,6 +193,7 @@ export function claim_space(nodes) {
 
 export function set_data(text, data) {
 	data = '' + data;
+	// ??? I'm not sure if I need to change this
 	if (text.wholeText !== data) text.data = data;
 }