1 files changed, 2 insertions, 2 deletions
diff --git a/ztest.cc b/ztest.cc
index c0147a6..0b47fbf 100644
--- a/ztest.cc
+++ b/ztest.cc
@@ -1,5 +1,5 @@
 /*  Ztest - verify integrity of compressed files
-    Copyright (C) 2010, 2011, 2012, 2013 Antonio Diaz Diaz.
+    Copyright (C) 2010, 2011, 2012, 2013, 2014 Antonio Diaz Diaz.
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -79,7 +79,7 @@ void show_help()
 
 int open_instream( std::string & input_filename )
   {
-  int infd = open( input_filename.c_str(), O_RDONLY | O_BINARY );
+  const int infd = open( input_filename.c_str(), O_RDONLY | O_BINARY );
   if( infd < 0 )
     show_error2( "Can't open input file", input_filename.c_str() );
   return infd;