diff --git a/plinth/modules/letsencrypt/__init__.py b/plinth/modules/letsencrypt/__init__.py
index 476c81598..a9a86b45f 100644
--- a/plinth/modules/letsencrypt/__init__.py
+++ b/plinth/modules/letsencrypt/__init__.py
@@ -47,7 +47,7 @@ description = [
           'certficate authority (CA).'), box_name=_(cfg.box_name)),
 
     _('Let\'s Encrypt is a free, automated, and open certificate '
-      'authority, run for the public’s benefit by the Internet Security '
+      'authority, run for the public\'s benefit by the Internet Security '
       'Research Group (ISRG).  Please read and agree with the '
       '<a href="https://letsencrypt.org/repository/">Let\'s Encrypt '
       'Subscriber Agreement</a> before using this service.')