diff --git a/packages/megalodon/src/misskey/api_client.ts b/packages/megalodon/src/misskey/api_client.ts
index c8be7b6b5c..9cbf3db6cc 100644
--- a/packages/megalodon/src/misskey/api_client.ts
+++ b/packages/megalodon/src/misskey/api_client.ts
@@ -82,7 +82,7 @@ namespace MisskeyAPI {
         id: u.id,
         username: u.username,
         acct: acct,
-        display_name: u.name,
+        display_name: u.name ? u.name : '',
         locked: false,
         group: null,
         noindex: null,
@@ -117,7 +117,7 @@ namespace MisskeyAPI {
         id: u.id,
         username: u.username,
         acct: acct,
-        display_name: u.name,
+        display_name: u.name ? u.name : '',
         locked: u.isLocked,
         group: null,
         noindex: null,