diff --git a/packages/megalodon/src/misskey.ts b/packages/megalodon/src/misskey.ts
index 8480fef7b..000e49180 100644
--- a/packages/megalodon/src/misskey.ts
+++ b/packages/megalodon/src/misskey.ts
@@ -225,7 +225,7 @@ export default class Misskey implements MegalodonInterface {
     if (options) {
       if (options.bot !== undefined) {
         params = Object.assign(params, {
-          isBot: options.bot ? true : false
+          isBot: options.bot.toString() === 'true' ? true : false
         })
       }
       if (options.display_name) {