diff --git a/trunk/paradiseo-peo/tutorial/Meta-models/cooperation.cpp b/trunk/paradiseo-peo/tutorial/Meta-models/cooperation.cpp
index e69de29bb..001e59968 100644
--- a/trunk/paradiseo-peo/tutorial/Meta-models/cooperation.cpp
+++ b/trunk/paradiseo-peo/tutorial/Meta-models/cooperation.cpp
@@ -0,0 +1,9 @@
+#include <iostream>
+#include <stdlib.h>
+
+int
+main(int __argc, char *__argv[])
+{
+  std::cout << "Nothing to do" << std::endl;
+  return EXIT_SUCCESS;
+}
diff --git a/trunk/paradiseo-peo/tutorial/Meta-models/multistart.cpp b/trunk/paradiseo-peo/tutorial/Meta-models/multistart.cpp
index e69de29bb..001e59968 100644
--- a/trunk/paradiseo-peo/tutorial/Meta-models/multistart.cpp
+++ b/trunk/paradiseo-peo/tutorial/Meta-models/multistart.cpp
@@ -0,0 +1,9 @@
+#include <iostream>
+#include <stdlib.h>
+
+int
+main(int __argc, char *__argv[])
+{
+  std::cout << "Nothing to do" << std::endl;
+  return EXIT_SUCCESS;
+}