diff --git a/src/ijl15.c b/src/ijl15.c
index d00f7cd..1199a40 100644
--- a/src/ijl15.c
+++ b/src/ijl15.c
@@ -1,6 +1,23 @@
-#include "../third_party/ijl/ijl.h"
+/**
+ * Copyright 2018-2024 John Chadwick <john@jchw.io>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose
+ * with or without fee is hereby granted, provided that the above copyright notice
+ * and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+
 #include <windows.h>
 
+#include "../third_party/ijl/ijl.h"
+
 const IJLibVersion *__stdcall ijlGetLibVersionWrapper() { return ijlGetLibVersion(); }
 
 IJLERR __stdcall ijlInitWrapper(JPEG_CORE_PROPERTIES *jcprops) { return ijlInit(jcprops); }