diff --git a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
index cd0fe2433d..128cb3491a 100644
--- a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
+++ b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
@@ -93,7 +93,7 @@ export class MastodonApiServerService {
 					},
 					order: { id: 'ASC' },
 				});
-				const contact = admin == null ? null : convertAccount((await client.getAccount(admin.id, BASE_URL)).data);
+				const contact = admin == null ? null : convertAccount((await client.getAccount(admin.id)).data);
 				reply.send(await getInstance(data.data, contact, this.config, await this.metaService.fetch()));
 			} catch (e: any) {
 				/* console.error(e); */
diff --git a/packages/backend/src/server/api/mastodon/endpoints/account.ts b/packages/backend/src/server/api/mastodon/endpoints/account.ts
index 0e93583533..b9e9cb862f 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/account.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/account.ts
@@ -106,8 +106,7 @@ export class ApiAccountMastodon {
 		try {
 			const data = await this.client.getAccountStatuses(
 				convertId((this.request.params as any).id, IdType.SharkeyId), 
-				convertTimelinesArgsId(argsToBools(limitToInt(this.request.query as any))),
-				this.BASE_URL,
+				convertTimelinesArgsId(argsToBools(limitToInt(this.request.query as any)))
 			);
 			return data.data.map((status) => convertStatus(status));
 		} catch (e: any) {
diff --git a/packages/megalodon/src/misskey.ts b/packages/megalodon/src/misskey.ts
index 2f2cf3b9c9..6d0b543c41 100644
--- a/packages/megalodon/src/misskey.ts
+++ b/packages/megalodon/src/misskey.ts
@@ -266,14 +266,14 @@ export default class Misskey implements MegalodonInterface {
   /**
    * POST /api/users/show
    */
-  public async getAccount(id: string, host?: string): Promise<Response<Entity.Account>> {
+  public async getAccount(id: string): Promise<Response<Entity.Account>> {
     return this.client
       .post<MisskeyAPI.Entity.UserDetail>('/api/users/show', {
         userId: id
       })
       .then(res => {
         return Object.assign(res, {
-          data: MisskeyAPI.Converter.userDetail(res.data, host)
+          data: MisskeyAPI.Converter.userDetail(res.data, this.baseUrl)
         })
       })
   }
@@ -301,7 +301,7 @@ export default class Misskey implements MegalodonInterface {
         })
         .then(res => {
           if (res.data.pinnedNotes) {
-            return { ...res, data: res.data.pinnedNotes.map(n => MisskeyAPI.Converter.note(n, host)) }
+            return { ...res, data: res.data.pinnedNotes.map(n => MisskeyAPI.Converter.note(n, this.baseUrl)) }
           }
           return { ...res, data: [] }
         })
@@ -630,7 +630,7 @@ export default class Misskey implements MegalodonInterface {
     }
     return this.client.post<Array<MisskeyAPI.Entity.UserDetail>>('/api/users/search', params).then(res => {
       return Object.assign(res, {
-        data: res.data.map(u => MisskeyAPI.Converter.userDetail(u))
+        data: res.data.map(u => MisskeyAPI.Converter.userDetail(u, this.baseUrl))
       })
     })
   }
@@ -1225,14 +1225,14 @@ export default class Misskey implements MegalodonInterface {
       }))
   }
 
-  public async getStatusFavouritedBy(_id: string, host?: string): Promise<Response<Array<Entity.Account>>> {
+  public async getStatusFavouritedBy(_id: string): Promise<Response<Array<Entity.Account>>> {
     return this.client.post<Array<MisskeyAPI.Entity.Reaction>>("/api/notes/reactions", {
       noteId: _id,
     })
     .then(async (res) => ({
       ...res,
       data: (
-        await Promise.all(res.data.map((n) => this.getAccount(n.user.id, host)))
+        await Promise.all(res.data.map((n) => this.getAccount(n.user.id)))
       ).map((p) => p.data),
     }));
   }
@@ -2059,7 +2059,7 @@ export default class Misskey implements MegalodonInterface {
         return this.client.post<Array<MisskeyAPI.Entity.UserDetail>>('/api/users/search', params).then(res => ({
           ...res,
           data: {
-            accounts: res.data.map(u => MisskeyAPI.Converter.userDetail(u)),
+            accounts: res.data.map(u => MisskeyAPI.Converter.userDetail(u, this.baseUrl)),
             statuses: [],
             hashtags: []
           }