diff --git a/tests/unit/config/test_configfiles.py b/tests/unit/config/test_configfiles.py
index fdfda4033..c7f611f44 100644
--- a/tests/unit/config/test_configfiles.py
+++ b/tests/unit/config/test_configfiles.py
@@ -22,12 +22,19 @@ import os
 
 import pytest
 
-from qutebrowser.config import config, configfiles, configexc
+from qutebrowser.config import config, configfiles, configexc, configdata
 from qutebrowser.utils import utils
 
 from PyQt5.QtCore import QSettings
 
 
+@pytest.fixture(autouse=True)
+def configdata_init():
+    """Initialize configdata if needed."""
+    if configdata.DATA is None:
+        configdata.init()
+
+
 @pytest.mark.parametrize('old_data, insert, new_data', [
     (None, False, '[general]\n\n[geometry]\n\n'),
     ('[general]\nfooled = true', False, '[general]\n\n[geometry]\n\n'),