diff --git a/Nagstamon/Servers/IcingaDBWeb.py b/Nagstamon/Servers/IcingaDBWeb.py
index ed4ed023..8340d7c4 100644
--- a/Nagstamon/Servers/IcingaDBWeb.py
+++ b/Nagstamon/Servers/IcingaDBWeb.py
@@ -744,7 +744,7 @@ def open_monitor(self, host, service=''):
             url = '{0}/icingadb/hosts?host.state.is_problem=y&sort=host.state.severity#!{1}/icingadb/host?{2}'.format(
                 self.monitor_url,
                 base_path,
-                urllib.parse.urlencode({'name': self.hosts[host].real_name}, quote_via=quote)
+                urllib.parse.urlencode({'name': self.hosts[host].real_name}, quote_via=urllib.parse.quote)
             )
         else:
             # Handle URL for service monitoring