diff --git a/Source/cmFileCommand.h b/Source/cmFileCommand.h
index 3b368fa2d..ced26c49b 100644
--- a/Source/cmFileCommand.h
+++ b/Source/cmFileCommand.h
@@ -152,7 +152,8 @@ public:
       "TO_CMAKE_PATH will convert path into a cmake style path with unix /. "
       " The input can be a single path or a system path like \"$ENV{PATH}\". "
       " Note the double quotes around the ENV call TO_CMAKE_PATH only takes "
-      " one argument.\n"
+      " one argument. This command will also convert the native list"
+      " delimiters for a list of paths like the PATH environment variable.\n"
       "TO_NATIVE_PATH works just like TO_CMAKE_PATH, but will convert from "
       " a cmake style path into the native path style \\ for windows and / "
       "for UNIX.\n"