diff --git a/Fat.h b/Fat.h
index 174f008..e5d76e3 100644
--- a/Fat.h
+++ b/Fat.h
@@ -22,7 +22,8 @@
 class Fat {
 public:
     static int check(const char *fsPath);
-    static int doMount(const char *fsPath, const char *mountPoint);
+    static int doMount(const char *fsPath, const char *mountPoint, bool ro,
+                       bool remount);
     static int format(const char *fsPath);
 };