1 files changed, 1 insertions, 4 deletions

diff --git a/src/mailman/testing/layers.py b/src/mailman/testing/layers.py
index 38aa3907f..4a9841fc2 100644
--- a/src/mailman/testing/layers.py
+++ b/src/mailman/testing/layers.py
@@ -48,7 +48,6 @@ import tempfile
 from lazr.config import as_boolean
 from pkg_resources import resource_string
 from textwrap import dedent
-from zope import event
 from zope.component import getUtility
 
 from mailman.config import config
@@ -99,9 +98,7 @@ class ConfigLayer(MockAndMonkeyLayer):
         # Set up the basic configuration stuff.  Turn off path creation until
         # we've pushed the testing config.
         config.create_paths = False
-        if not event.subscribers:
-            # Only if not yet initialized by another layer.
-            initialize.initialize_1(INHIBIT_CONFIG_FILE)
+        initialize.initialize_1(INHIBIT_CONFIG_FILE)
         assert cls.var_dir is None, 'Layer already set up'
         # Calculate a temporary VAR_DIR directory so that run-time artifacts
         # of the tests won't tread on the installation's data.  This also