diff --git a/src/func_create_ff.hpp b/src/func_create_ff.hpp
index 14ac7363..4a732a9f 100644
--- a/src/func_create_ff.hpp
+++ b/src/func_create_ff.hpp
@@ -30,9 +30,9 @@ namespace Func
     ~CreateFF();
 
   public:
-    virtual int operator()(Branches2        &branches_,
-                           char const       *fusepath,
-                           mode_t const      mode,
-                           fuse_file_info_t *ffi);
+    virtual int operator()(Branches2                   &branches,
+                           ghc::filesystem::path const &fusepath,
+                           mode_t const                 mode,
+                           fuse_file_info_t            *ffi);
   };
 }