diff --git a/mozilla/modules/plugin/base/macbuild/pluginPrefix.h b/mozilla/modules/plugin/base/macbuild/pluginPrefix.h
new file mode 100644
index 00000000000..62a2b818de0
--- /dev/null
+++ b/mozilla/modules/plugin/base/macbuild/pluginPrefix.h
@@ -0,0 +1,21 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#define _IMPL_NS_PLUGINS 1
+
+#include "MacSharedPrefix_debug.h"
\ No newline at end of file
diff --git a/mozilla/modules/plugin/macbuild/pluginPrefix.h b/mozilla/modules/plugin/macbuild/pluginPrefix.h
new file mode 100644
index 00000000000..62a2b818de0
--- /dev/null
+++ b/mozilla/modules/plugin/macbuild/pluginPrefix.h
@@ -0,0 +1,21 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#define _IMPL_NS_PLUGINS 1
+
+#include "MacSharedPrefix_debug.h"
\ No newline at end of file