diff --git a/letin/main.cpp b/letin/main.cpp
index eb45e3e..205f480 100644
--- a/letin/main.cpp
+++ b/letin/main.cpp
@@ -1,5 +1,5 @@
 /****************************************************************************
- *   Copyright (C) 2014-2015, 2017 Łukasz Szpakowski.                       *
+ *   Copyright (C) 2014-2015, 2017, 2019 Łukasz Szpakowski.                 *
  *                                                                          *
  *   This software is licensed under the GNU Lesser General Public          *
  *   License v3 or later. See the LICENSE file and the GPL file for         *
@@ -355,7 +355,7 @@ int main(int argc, char **argv)
                 if(isprint(c))
                   cout << c;
                 else
-                  cout << "\\" << oct << c;
+                  cout << "\\" << oct << c << dec;
                 break;
             }
           }