diff --git a/tests/conftest.py b/tests/conftest.py
index ebbc9e2c7f6..3934203eab3 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -5,9 +5,23 @@
 import pytest
 
 import sphinx
+import sphinx.locale
 from sphinx.testing import comparer
 from sphinx.testing.path import path
 
+
+def _init_console(locale_dir=sphinx.locale._LOCALE_DIR, catalog='sphinx'):
+    """Monkeypatch ``init_console`` to skip its action.
+
+    Some tests rely on warning messages in English. We don't want
+    CLI tests to bleed over those tests and make their warnings
+    translated.
+    """
+    return sphinx.locale.NullTranslations(), False
+
+
+sphinx.locale.init_console = _init_console
+
 pytest_plugins = 'sphinx.testing.fixtures'
 
 # Exclude 'roots' dirs for pytest test collector