diff --git a/src/calibre/linux.py b/src/calibre/linux.py
index 071db8f480..e52ee19bd1 100644
--- a/src/calibre/linux.py
+++ b/src/calibre/linux.py
@@ -1322,7 +1322,7 @@ def cli_index_strings():
         'On macOS, the command line tools are inside the calibre bundle, for example,'
     ' if you installed calibre in :file:`/Applications` the command line tools'
         ' are in :file:`/Applications/calibre.app/Contents/MacOS/`. So, for example, to run :file:`ebook-convert`'
-        'you would use: :file:`/Applications/calibre.app/Contents/MacOS/ebook-convert`.'), _(
+        ' you would use: :file:`/Applications/calibre.app/Contents/MacOS/ebook-convert`.'), _(
         'Documented commands'), _('Undocumented commands'), _(
         'You can see usage for undocumented commands by executing them without arguments in a terminal.'), _(
             'Change language'), _('Search')