diff --git a/src/utils.ts b/src/utils.ts
index fb7eabb9..ad0c46dc 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -259,7 +259,6 @@ export function replaceDtsWithJsExtensions(dtsFilePath: string) {
     (_, fileExtension: string) => {
       switch (fileExtension) {
         case 'ts':
-        case 'tsx':
           return '.js'
         case 'mts':
           return '.mjs'