diff --git a/src/branch2.hpp b/src/branch2.hpp
index 53a9d358..3fddd3bd 100644
--- a/src/branch2.hpp
+++ b/src/branch2.hpp
@@ -16,12 +16,7 @@ BETTER_ENUM(BranchMode,
 class Branch2
 {
 public:
-  enum class Mode
-    {
-      RO,
-      RW,
-      NC
-    };
+  using BranchMode Mode;
 
 public:
   Branch2(toml::value const &);