diff --git a/packages/backend/src/remote/activitypub/renderer/note.ts b/packages/backend/src/remote/activitypub/renderer/note.ts
index a71325d4ef..93a31c9908 100644
--- a/packages/backend/src/remote/activitypub/renderer/note.ts
+++ b/packages/backend/src/remote/activitypub/renderer/note.ts
@@ -60,7 +60,7 @@ export default async function renderNote(
 					),
 			);
 
-			if (!inReplyToUser) {
+			if (inReplyToUser) {
 				if (inReplyToNote.uri) {
 					inReplyTo = inReplyToNote.uri;
 				} else {