diff --git a/src/gui_interface.py b/src/gui_interface.py
index 1f54f0007..1214048ba 100644
--- a/src/gui_interface.py
+++ b/src/gui_interface.py
@@ -2478,8 +2478,7 @@ class Interface:
         basic_pattern = links + '|' + mail + '|' + legacy_prefixes
 
         link_pattern = basic_pattern
-        self.link_pattern_re = re.compile(link_pattern, re.IGNORECASE |
-                re.UNICODE)
+        self.link_pattern_re = re.compile(link_pattern, re.I | re.U)
 
         if gajim.config.get('use_latex'):
             basic_pattern += latex