diff --git a/mps/code/protxc.c b/mps/code/protxc.c
index f95c31f76bd..dc23a3bb1c2 100644
--- a/mps/code/protxc.c
+++ b/mps/code/protxc.c
@@ -23,10 +23,6 @@
  * That thread calls the MPS to resolve the condition and allow the mutator
  * thread to progress.
  *
- * That part is fairly simple.  Most of the code in this module is concerned
- * with decoding Mach messages and re-encoding them in order to forward them
- * on to other exception handlers.
- *
  *
  * SOURCES
  *
diff --git a/mps/code/protxc.h b/mps/code/protxc.h
index 5621186f960..26403b47cbc 100644
--- a/mps/code/protxc.h
+++ b/mps/code/protxc.h
@@ -1,4 +1,4 @@
-/* protxc.c: PROTECTION EXCPETION HANDLER FOR OS X MACH
+/* protxc.h: PROTECTION EXCPETION HANDLER FOR OS X MACH
  *
  * $Id$
  * Copyright (c) 2013 Ravenbrook Limited.  See end of file for license.