diff --git a/src/lib_json/json_value.cpp b/src/lib_json/json_value.cpp
index 35ec41d..b279953 100644
--- a/src/lib_json/json_value.cpp
+++ b/src/lib_json/json_value.cpp
@@ -726,6 +726,8 @@ Value::asUInt() const
       return UInt(value_.uint_);
    case realValue:
       return UInt( value_.real_ );
+   default:
+      break;
    }
    JSON_ASSERT_UNREACHABLE;
    return 0;