diff --git a/frontend/src/Utilities/Number/formatBytes.js b/frontend/src/Utilities/Number/formatBytes.js
index c9d84ec11..d4d389357 100644
--- a/frontend/src/Utilities/Number/formatBytes.js
+++ b/frontend/src/Utilities/Number/formatBytes.js
@@ -7,10 +7,10 @@ function formatBytes(input) {
     return '';
   }
 
-  return filesize(size, {
+  return `${filesize(size, {
     base: 2,
     round: 1
-  }).toString();
+  })}`;
 }
 
 export default formatBytes;