diff --git a/Modules/FindGCCXML.cmake b/Modules/FindGCCXML.cmake
index c3c4bd19e..52390c30a 100644
--- a/Modules/FindGCCXML.cmake
+++ b/Modules/FindGCCXML.cmake
@@ -1,4 +1,7 @@
 # - Find the GCC-XML front-end executable.
+#
+# This module will define the following variables:
+#  GCCXML - the GCC-XML front-end executable.
 
 #=============================================================================
 # Copyright 2001-2009 Kitware, Inc.