diff --git a/template/defines.h b/template/defines.h
index e44cefe..d975cc5 100644
--- a/template/defines.h
+++ b/template/defines.h
@@ -1,3 +1,8 @@
+/**
+ * Automatically generated declarations for the experiment.
+ * Plese don't modify manually, but use the generator.py script.
+ */
+
 {{#includes}}
 #include{{name}}
 {{/includes}}