diff --git a/src/Innertube.ts b/src/Innertube.ts
index 6d1907d8..ad1f7aff 100644
--- a/src/Innertube.ts
+++ b/src/Innertube.ts
@@ -528,7 +528,7 @@ export default class Innertube {
     const writer2 = CommunityPostCommentsParamContainer.encode({
       f0: {
         location: 'FEcomment_post_detail_page_web_top_level',
-        protoData: encodeURIComponent(u8ToBase64(writer1.finish()))
+        protoData: encodeURIComponent(u8ToBase64(writer1.finish()).replace(/\+/g, '-').replace(/\//g, '_'))
       }
     });