diff --git a/portal-ui/src/screens/Console/Buckets/ListBuckets/Objects/utils.ts b/portal-ui/src/screens/Console/Buckets/ListBuckets/Objects/utils.ts
index a88aa21b5..22ea370c0 100644
--- a/portal-ui/src/screens/Console/Buckets/ListBuckets/Objects/utils.ts
+++ b/portal-ui/src/screens/Console/Buckets/ListBuckets/Objects/utils.ts
@@ -138,7 +138,7 @@ export const extensionPreview = (
     "png",
     "heic",
   ];
-  const textExtensions = ["pdf", "txt", "json"];
+  const textExtensions = ["pdf"];
   const audioExtensions = ["wav", "mp3", "alac", "aiff", "dsd", "pcm"];
   const videoExtensions = [
     "mp4",