diff --git a/comm.cpp b/comm.cpp
index cb4cc6a..0d609ab 100644
--- a/comm.cpp
+++ b/comm.cpp
@@ -1,5 +1,10 @@
+// (C) 2024 by Folkert van Heusden
+// Released under MIT license
+
+#include "gen.h"
 #include "comm.h"
 
+
 comm::comm()
 {
 }
diff --git a/comm.h b/comm.h
index 4656b08..cec9a6f 100644
--- a/comm.h
+++ b/comm.h
@@ -1,3 +1,7 @@
+// (C) 2024 by Folkert van Heusden
+// Released under MIT license
+
+#include "gen.h"
 #include <cstddef>
 #include <cstdint>