diff --git a/src/branch2.hpp b/src/branch2.hpp
index 3fddd3bd..b17985ec 100644
--- a/src/branch2.hpp
+++ b/src/branch2.hpp
@@ -16,7 +16,7 @@ BETTER_ENUM(BranchMode,
 class Branch2
 {
 public:
-  using BranchMode Mode;
+  typedef BranchMode Mode;
 
 public:
   Branch2(toml::value const &);