diff --git include/msgpack/v1/adaptor/fixint.hpp include/msgpack/v1/adaptor/fixint.hpp
--- include/msgpack/v1/adaptor/fixint.hpp
+++ include/msgpack/v1/adaptor/fixint.hpp
@@ -24,7 +24,7 @@ template <typename T>
 struct fix_int {
     typedef T value_type;
     fix_int() : value(0) { }
-    fix_int(T value) : value(value) { }
+    fix_int(T _value) : value(_value) { }
 
     operator T() const { return value; }