diff --git a/pytest.ini b/pytest.ini
index 6e6729d9..db7afb83 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -14,6 +14,7 @@ required_plugins =
     pytest-pythonpath
     pytest-subprocess
     pytest-timeout
+    pyfakefs
 # Show reports for failed tests:
 addopts=-rF
 # Unless test targets are given on the command line, run just the tests in the tests/ directory: