diff -ruN a/yalafi/shell/shell.py b/yalafi/shell/shell.py
--- a/yalafi/shell/shell.py	2020-05-27 17:32:05.000000000 +0200
+++ b/yalafi/shell/shell.py	2020-07-02 21:29:01.241960928 +0200
@@ -34,7 +34,7 @@
 # - Java has to be installed,
 #   under Cygwin the Windows version is used
 #
-ltdirectory = '../LT/LanguageTool-4.7/'
+ltdirectory = '/usr/share/java/languagetool'
 ltcommand = 'java -jar languagetool-commandline.jar'
 
 # on option --server lt: address of server hosted by LT