diff --git a/login.c b/login.c
index 48b5172..693ebd6 100644
--- a/login.c
+++ b/login.c
@@ -1,3 +1,7 @@
+/* mlogin: minimalistic login                */
+/* Copyright (c) 2019  Ørjan Malde           */
+/* Released under LGPL, see COPYRIGHT.MLOGIN */
+
 #define _GNU_SOURCE
 #include <sys/types.h>
 #include <unistd.h>
diff --git a/login.h b/login.h
index ad0c720..c284c16 100644
--- a/login.h
+++ b/login.h
@@ -1,2 +1,6 @@
+/* mlogin: minimalistic login                */
+/* Copyright (c) 2019  Ørjan Malde           */
+/* Released under LGPL, see COPYRIGHT.MLOGIN */
+
 void usage(void);
 int timingsafe_memcmp(const void *b1, const void *b2, size_t len);