diff --git a/rootdir/init.rc b/rootdir/init.rc
index 14523799f..9ad7c7c68 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -17,6 +17,9 @@ on early-init
     # Set the security context of /adb_keys if present.
     restorecon /adb_keys
 
+    # Shouldn't be necessary, but sdcard won't start without it. http://b/22568628.
+    mkdir /mnt 0775 root system
+
     start ueventd
 
 on init