diff --git a/src/scripts/du.sh b/src/scripts/du.sh
index 6cd24c9e9..d159b9374 100755
--- a/src/scripts/du.sh
+++ b/src/scripts/du.sh
@@ -18,12 +18,6 @@ if [[ "$1" == "--check" ]]; then
 fi
 
 path="$1"
-exclude="${2:-}"
 
 # -B1 makes du print block sizes and not apparent sizes (to match df which also uses block sizes)
-if [[ -z "${exclude}" ]]; then
-    du -DsB1 "${path}"
-else
-    du -DsB1 "${path}" --exclude "${exclude}"
-fi
-
+du -DsB1 "${path}"
diff --git a/src/system.js b/src/system.js
index db8a21f5a..b709dc9e3 100644
--- a/src/system.js
+++ b/src/system.js
@@ -27,11 +27,10 @@ const apps = require('./apps.js'),
 
 const DU_CMD = path.join(__dirname, 'scripts/du.sh');
 
-async function du(file, options) {
+async function du(file) {
     assert.strictEqual(typeof file, 'string');
-    assert.strictEqual(typeof options, 'object');
 
-    const [error, stdoutResult] = await safe(shell.promises.sudo('system', [ DU_CMD, file, options.exclude || '' ], {}));
+    const [error, stdoutResult] = await safe(shell.promises.sudo('system', [ DU_CMD, file ], {}));
     if (error) throw new BoxError(BoxError.FS_ERROR, error);
 
     return parseInt(stdoutResult.trim(), 10);
@@ -61,7 +60,7 @@ async function getDisks() {
 
     const standardPaths = [
         { type: 'standard', id: 'platformdata', path: paths.PLATFORM_DATA_DIR },
-        { type: 'standard', id: 'boxdata',      path: paths.BOX_DATA_DIR, exclude: 'mail' },
+        { type: 'standard', id: 'boxdata',      path: paths.BOX_DATA_DIR },
         { type: 'standard', id: 'maildata',     path: paths.MAIL_DATA_DIR },
     ];
 
@@ -171,7 +170,7 @@ async function updateDiskUsage(progressCallback) {
             if (content.id === 'docker') {
                 content.usage = (await docker.df()).LayersSize;
             } else {
-                content.usage = await du(content.path, { exclude: content.exclude });
+                content.usage = await du(content.path);
             }
             progressCallback({ message: `du of ${JSON.stringify(content)}: ${content.usage}`});
         }