diff --git a/tt2xml.py b/tt2xml.py
index 921e92883..32ce4db71 100644
--- a/tt2xml.py
+++ b/tt2xml.py
@@ -1,7 +1,7 @@
 #! /usr/bin/env python
 
 """\
-usage: %s [-hvs] [-t <table>] TrueType-file [XML-output-file]
+usage: %s [-hvs] [-t <table>] [-x <table>] TrueType-file [XML-output-file]
     Dump a TrueType font as an XML file. If the XML-output-file argument
     is omitted, the out put file name will be constructed from the input
     file name, like so: *.ttf becomes *.xml. Either way, existing files
@@ -11,6 +11,8 @@ usage: %s [-hvs] [-t <table>] TrueType-file [XML-output-file]
     -t <table> specify a table to dump. Multiple -t options
        are allowed. When no -t option is specified, all tables
        will be dumped
+    -x <table> specify a table to exclude from the dump. Multiple
+       -x options are allowed. -t and -x are mutually exclusive.
     -v verbose: messages will be written to stdout about what is 
        being done.
     -s split tables: save the XML in a separate XML file per table.
@@ -24,11 +26,12 @@ usage: %s [-hvs] [-t <table>] TrueType-file [XML-output-file]
 import sys, os, getopt
 from fontTools import ttLib
 
-options, args = getopt.getopt(sys.argv[1:], "shvt:")
+options, args = getopt.getopt(sys.argv[1:], "shvt:x:")
 
 verbose = 0
 splitTables = 0
 tables = []
+skipTables = []
 for option, value in options:
 	if option == "-t":
 		if len(value) > 4:
@@ -37,6 +40,13 @@ for option, value in options:
 		# normalize tag
 		value = value + (4 - len(value)) * " "
 		tables.append(value)
+	elif option == "-x":
+		if len(value) > 4:
+			print "illegal table tag: " + value
+			sys.exit(2)
+		# normalize tag
+		value = value + (4 - len(value)) * " "
+		skipTables.append(value)
 	elif option == "-v":
 		verbose = 1
 	elif option == "-h":
@@ -45,6 +55,9 @@ for option, value in options:
 	elif option == "-s":
 		splitTables = 1
 
+if tables and skipTables:
+	print "-t and -x options are mutually exlusive"
+	sys.exit(2)
 
 if len(args) == 1:
 	ttPath = args[0]
@@ -60,4 +73,4 @@ else:
 	sys.exit(2)
 
 tt = ttLib.TTFont(ttPath, verbose=verbose)
-tt.saveXML(xmlPath, tables=tables, splitTables=splitTables)
+tt.saveXML(xmlPath, tables=tables, skipTables=skipTables, splitTables=splitTables)
diff --git a/ttDump.py b/ttDump.py
index 921e92883..32ce4db71 100644
--- a/ttDump.py
+++ b/ttDump.py
@@ -1,7 +1,7 @@
 #! /usr/bin/env python
 
 """\
-usage: %s [-hvs] [-t <table>] TrueType-file [XML-output-file]
+usage: %s [-hvs] [-t <table>] [-x <table>] TrueType-file [XML-output-file]
     Dump a TrueType font as an XML file. If the XML-output-file argument
     is omitted, the out put file name will be constructed from the input
     file name, like so: *.ttf becomes *.xml. Either way, existing files
@@ -11,6 +11,8 @@ usage: %s [-hvs] [-t <table>] TrueType-file [XML-output-file]
     -t <table> specify a table to dump. Multiple -t options
        are allowed. When no -t option is specified, all tables
        will be dumped
+    -x <table> specify a table to exclude from the dump. Multiple
+       -x options are allowed. -t and -x are mutually exclusive.
     -v verbose: messages will be written to stdout about what is 
        being done.
     -s split tables: save the XML in a separate XML file per table.
@@ -24,11 +26,12 @@ usage: %s [-hvs] [-t <table>] TrueType-file [XML-output-file]
 import sys, os, getopt
 from fontTools import ttLib
 
-options, args = getopt.getopt(sys.argv[1:], "shvt:")
+options, args = getopt.getopt(sys.argv[1:], "shvt:x:")
 
 verbose = 0
 splitTables = 0
 tables = []
+skipTables = []
 for option, value in options:
 	if option == "-t":
 		if len(value) > 4:
@@ -37,6 +40,13 @@ for option, value in options:
 		# normalize tag
 		value = value + (4 - len(value)) * " "
 		tables.append(value)
+	elif option == "-x":
+		if len(value) > 4:
+			print "illegal table tag: " + value
+			sys.exit(2)
+		# normalize tag
+		value = value + (4 - len(value)) * " "
+		skipTables.append(value)
 	elif option == "-v":
 		verbose = 1
 	elif option == "-h":
@@ -45,6 +55,9 @@ for option, value in options:
 	elif option == "-s":
 		splitTables = 1
 
+if tables and skipTables:
+	print "-t and -x options are mutually exlusive"
+	sys.exit(2)
 
 if len(args) == 1:
 	ttPath = args[0]
@@ -60,4 +73,4 @@ else:
 	sys.exit(2)
 
 tt = ttLib.TTFont(ttPath, verbose=verbose)
-tt.saveXML(xmlPath, tables=tables, splitTables=splitTables)
+tt.saveXML(xmlPath, tables=tables, skipTables=skipTables, splitTables=splitTables)