diff --git a/src/middleware/pretty-json/index.ts b/src/middleware/pretty-json/index.ts
index c2cb0d4dc..a8b264979 100644
--- a/src/middleware/pretty-json/index.ts
+++ b/src/middleware/pretty-json/index.ts
@@ -30,7 +30,7 @@ type prettyOptions = {
  */
 export const prettyJSON = (options: prettyOptions = { space: 2 }): MiddlewareHandler => {
   return async function prettyJSON(c, next) {
-    const pretty = c.req.query('pretty') || c.req.query('pretty') === '' ? true : false
+    const pretty = c.req.query('pretty') || c.req.query('pretty') === ''
     await next()
     if (pretty && c.res.headers.get('Content-Type')?.startsWith('application/json')) {
       const obj = await c.res.json()