diff --git a/copy.cc b/copy.cc
--- a/copy.cc
+++ b/copy.cc
@@ -15,7 +15,7 @@
     char c;
 
     if (argc != 3) {
-        std::cout << "Benutzung: " << argv[0] << " <datei> <datei>" << std::endl;
+        std::cout << "Benutzung: " << argv[0] << " <QUELLE> <ZIEL>" << std::endl;
         return EXIT_SUCCESS;
     }