diff --git a/ChangeLog b/ChangeLog
index 3fefcb839..759cf11c0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,13 +1,17 @@
+2008-03-05 Raphael Ackermann <raphael.ackermann@gmail.com>
+	* src/ReportBase/_CommandLineReport.py: print warning if show=option is 
+	not a valid option. Addresses some of 0001891.
+
 2008-03-05 Jerome Rapinat <romjerome@yahoo.fr>
-        * src/plugins/DateParserDisplayTest.py: allow to translate QuestionDialog 
+	* src/plugins/DateParserDisplayTest.py: allow to translate QuestionDialog 
 
 2008-03-05  Douglas S. Blank  <dblank@cs.brynmawr.edu>
 	* src/docgen/TextBufDoc.py: fixed translations of Quick View
 	* src/plugins/References.py: fixed translations of ref types
 
 2008-03-05  Łukasz Rymarczyk <yenidai(at)poczta(dot)onet(dot)pl>
-    * src/plugins/rel_pl.py: 0001776: Relationship calculator, update Polish
-    Rewritten for 3.x version
+	* src/plugins/rel_pl.py: 0001776: Relationship calculator, update Polish
+	Rewritten for 3.x version
 
 2008-03-04  Douglas S. Blank  <dblank@cs.brynmawr.edu>
 	* src/Simple/_SimpleTable.py: 
@@ -29,16 +33,16 @@
 	Fixed indentation issue
 
 2008-03-04 Raphael Ackermann <raphael.ackermann@gmail.com>
-    * src/Bookmarks.py: 0001770: Bookmark Editor window and deleting entries 
-    Set focus on bookmark right above the deleted bookmark
-    * src/gramps.py: comment typo
-    * src/ListModel.py: fix, changed func((param)) to func(param)
+	* src/Bookmarks.py: 0001770: Bookmark Editor window and deleting entries 
+	Set focus on bookmark right above the deleted bookmark
+	* src/gramps.py: comment typo
+	* src/ListModel.py: fix, changed func((param)) to func(param)
 
 2008-03-04 Peter Landgren <peter.talken2telia.com>
-    * src/docgen/HtmlDoc.py: Issues 1875 and 1879#
+	* src/docgen/HtmlDoc.py: Issues 1875 and 1879#
 
 2008-03-04 Raphael Ackermann <raphael.ackermann@gmail.com>
-    * src/plugins/WritePkg.py: added import Utils to prevent crash on export
+	* src/plugins/WritePkg.py: added import Utils to prevent crash on export
 
 2008-03-04  Douglas S. Blank  <dblank@cs.brynmawr.edu>
 	* src/DataViews/GrampletView.py: added infrastructure for 
diff --git a/src/ReportBase/_CommandLineReport.py b/src/ReportBase/_CommandLineReport.py
index 791ea0939..a7ee24001 100644
--- a/src/ReportBase/_CommandLineReport.py
+++ b/src/ReportBase/_CommandLineReport.py
@@ -3,6 +3,7 @@
 #
 # Copyright (C) 2001-2007  Donald N. Allingham
 # Copyright (C) 2008 Lukasz Rymarczyk
+# Copyright (C) 2008 Raphael Ackermann
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -55,7 +56,7 @@ import const
 #------------------------------------------------------------------------
 def _validate_options(options, dbase):
     """
-    Validates all options by making sure that their values are consistent with
+    Validate all options by making sure that their values are consistent with
     the database.
     
     menu: The Menu class
@@ -355,7 +356,9 @@ class CommandLineReport:
                 print "      %s" % self.options_help[self.show][2]
 
         else:
-            self.show = None
+            #there was a show option given, but the option is invalid
+            print ("option %s not valid. Use 'show=all' to see all valid "  
+                  "options." % self.show)
 
 #------------------------------------------------------------------------
 #