diff --git a/client/components/cards/attachments.jade b/client/components/cards/attachments.jade
index b24558319..f1cc796fc 100644
--- a/client/components/cards/attachments.jade
+++ b/client/components/cards/attachments.jade
@@ -54,7 +54,7 @@ template(name="attachmentsGalery")
               span.attachment-thumbnail-ext= extension
         p.attachment-details
           = name
-          span.file-size ({{fileSize size}} KB)
+          span.file-size ({{fileSize size}})
           span.attachment-details-actions
             a.js-download(href="{{link}}?download=true", download="{{name}}")
               i.fa.fa-download
diff --git a/client/components/cards/attachments.js b/client/components/cards/attachments.js
index fe97eafda..0ac0b0f00 100644
--- a/client/components/cards/attachments.js
+++ b/client/components/cards/attachments.js
@@ -16,7 +16,8 @@ Template.attachmentsGalery.helpers({
     return Meteor.user().isBoardAdmin();
   },
   fileSize(size) {
-    return Math.round(size / 1024);
+    const ret = filesize(size);
+    return ret;
   },
 });