diff --git a/CHANGELOG.md b/CHANGELOG.md
index 726f330..c7979ec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@ As this project is a user-facing application, the places in the semantic version
 ### Fixed
 
 - Downloading source file was broken for binary files
+- Correct file size outputs using binary base instead of decimal
 
 ## [1.0.2] (2023-10-03)
 
diff --git a/src/corpus/sources/UploadSizeLimits.vue b/src/corpus/sources/UploadSizeLimits.vue
index 796996b..b09d28d 100644
--- a/src/corpus/sources/UploadSizeLimits.vue
+++ b/src/corpus/sources/UploadSizeLimits.vue
@@ -3,6 +3,7 @@ import useMinkBackendInfo from "@/api/backendInfo.composable";
 import useLocale from "@/i18n/locale.composable";
 
 const { hasInfo, findInfo } = useMinkBackendInfo();
+// Use filesize with precision 0 to have "1 MB" instead of "1.0 MB".
 const { filesize } = useLocale();
 </script>
 
@@ -11,19 +12,19 @@ const { filesize } = useLocale();
     <tr>
       <th>{{ $t("source.limit.file.recommended") }}</th>
       <td class="text-right">
-        {{ filesize(findInfo("recommended_file_size", "max_file_length")) }}
+        {{ filesize(findInfo("recommended_file_size", "max_file_length"), 0) }}
       </td>
     </tr>
     <tr>
       <th>{{ $t("source.limit.file.max") }}</th>
       <td class="text-right">
-        {{ filesize(findInfo("file_size_limits", "max_file_length")) }}
+        {{ filesize(findInfo("file_size_limits", "max_file_length"), 0) }}
       </td>
     </tr>
     <tr>
       <th>{{ $t("source.limit.upload.max") }}</th>
       <td class="text-right">
-        {{ filesize(findInfo("file_size_limits", "max_content_length")) }}
+        {{ filesize(findInfo("file_size_limits", "max_content_length"), 0) }}
       </td>
     </tr>
   </table>
diff --git a/src/i18n/locale.composable.js b/src/i18n/locale.composable.js
index 7ec4347..9b3e92e 100644
--- a/src/i18n/locale.composable.js
+++ b/src/i18n/locale.composable.js
@@ -40,8 +40,10 @@ export default function useLocale() {
     );
   }
 
-  function myFilesize(bytes) {
-    const str = filesize(bytes, { base: 2, locale: locale.value });
+  /** Wrap the filesize lib with some sane defaults and avoiding exponential notation. */
+  function myFilesize(bytes, precision = 2) {
+    // Default precision is 0 which means up until 2 decimals?
+    const str = filesize(bytes, { precision, base: 2, locale: locale.value });
     // Convert exponential notation to ordinary.
     return str.replace(/[\d.]+e[+\d]+/, parseFloat);
   }