diff --git a/doc/Makefile b/doc/Makefile
index f63f91454c..d5671b8895 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -10,7 +10,6 @@ endif
 BUILDDIR       = ${CURDIR}
 RSTDIR         = $(BUILDDIR)/src
 VENV           = $(BUILDDIR)/docenv
-TXT2RST        = $(VENV)/bin/txt2rst
 ANCHORCHECK    = $(VENV)/bin/rst_anchor_check
 SPHINXCONFIG   = $(BUILDDIR)/utils/sphinx-config
 MATHJAX        = $(SPHINXCONFIG)/_static/mathjax
@@ -59,7 +58,7 @@ SPHINXEXTRA = -E -j $(shell $(PYTHON) -c 'import multiprocessing;print(multiproc
 # we only want to use explicitly listed files.
 DOXYFILES      = $(shell sed -n -e 's/\#.*$$//' -e '/^ *INPUT \+=/,/^[A-Z_]\+ \+=/p' doxygen/Doxyfile.in | sed -e 's/@LAMMPS_SOURCE_DIR@/..\/src/g' -e 's/\\//g' -e 's/ \+/ /' -e 's/[A-Z_]\+ \+= *\(YES\|NO\|\)//') 
 
-.PHONY: help clean-all clean clean-spelling epub mobi rst html pdf spelling anchor_check style_check xmlgen
+.PHONY: help clean-all clean clean-spelling epub mobi rst html pdf spelling anchor_check style_check char_check xmlgen
 
 # ------------------------------------------
 
@@ -205,6 +204,9 @@ package_check : $(VENV)
 		deactivate ;\
 	)
 
+char_check :
+	@( env LC_ALL=C grep -n '[^ -~]' $(RSTDIR)/*.rst && exit 1 || : )
+
 xmlgen : doxygen/xml/index.xml
 
 doxygen/Doxyfile: doxygen/Doxyfile.in
@@ -230,7 +232,7 @@ $(VENV):
 $(MATHJAX):
 	@git clone -b 3.1.4 -c advice.detachedHead=0 --depth 1 git://github.com/mathjax/MathJax.git $@
 
-$(TXT2RST) $(ANCHORCHECK): $(VENV)
+$(ANCHORCHECK): $(VENV)
 	@( \
 		. $(VENV)/bin/activate; \
 		(cd utils/converters;\
diff --git a/doc/utils/converters/lammpsdoc/rst_anchor_check.py b/doc/utils/converters/lammpsdoc/rst_anchor_check.py
old mode 100644
new mode 100755
index 64a1308601..5d4ee428e2
--- a/doc/utils/converters/lammpsdoc/rst_anchor_check.py
+++ b/doc/utils/converters/lammpsdoc/rst_anchor_check.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python3
+#!/usr/bin/env python3
 # LAMMPS Documentation Utilities
 #
 # Scan for duplicate anchor labels in documentation files
diff --git a/doc/utils/converters/setup.py b/doc/utils/converters/setup.py
index d85669bcc1..275c9b0c0b 100644
--- a/doc/utils/converters/setup.py
+++ b/doc/utils/converters/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup
 
 setup(name='LAMMPS Documentation Utilities',
-      version='2.0.0',
+      version='2.0.1',
       description='Utilities to convert existing LAMMPS documentation text files into ReStructured Text',
       url='https://github.com/rbberger/lammps-doc-utils',
       author='Richard Berger',
@@ -11,8 +11,6 @@ setup(name='LAMMPS Documentation Utilities',
       test_suite='nose.collector',
       tests_require=['nose'],
       entry_points = {
-          "console_scripts": ['txt2html = lammpsdoc.txt2html:main',
-                              'txt2rst  = lammpsdoc.txt2rst:main',
-                              'rst_anchor_check = lammpsdoc.rst_anchor_check:main ']
+          "console_scripts": ['rst_anchor_check = lammpsdoc.rst_anchor_check:main ']
       },
 )