diff --git a/packages/webidl/src/webidltopas2js.pp b/packages/webidl/src/webidltopas2js.pp
index c914907815..1879718016 100644
--- a/packages/webidl/src/webidltopas2js.pp
+++ b/packages/webidl/src/webidltopas2js.pp
@@ -1,3 +1,17 @@
+{
+    This file is part of the Free Component Library
+
+    WEBIDL to pascal code converter
+    Copyright (c) 2021 by Michael Van Canneyt michael@freepascal.org
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
 unit webidltopas2js;
 
 {$mode ObjFPC}{$H+}
diff --git a/packages/webidl/src/webidltowasmjob.pp b/packages/webidl/src/webidltowasmjob.pp
index f01c63766f..7112552784 100644
--- a/packages/webidl/src/webidltowasmjob.pp
+++ b/packages/webidl/src/webidltowasmjob.pp
@@ -1,3 +1,17 @@
+{
+    This file is part of the Free Component Library
+
+    WEBIDL to pascal code converter
+    Copyright (c) 2021 by Michael Van Canneyt michael@freepascal.org
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
 unit webidltowasmjob;
 
 {$mode ObjFPC}{$H+}