diff --git a/deluge/pluginmanagerbase.py b/deluge/pluginmanagerbase.py
index 0a84c1b1c7..b6335d2d90 100644
--- a/deluge/pluginmanagerbase.py
+++ b/deluge/pluginmanagerbase.py
@@ -106,7 +106,7 @@ def scan_for_plugins(self):
         pkg_resources.working_set.add_entry(user_plugin_dir)
         plugins_dirs.append(user_plugin_dir)
 
-        self.pkg_env = pkg_resources.Environment(plugins_dirs)
+        self.pkg_env = pkg_resources.Environment(plugins_dirs, None)
 
         self.available_plugins = []
         for name in self.pkg_env: