diff --git a/python/dune/xt/__init__.py b/python/dune/xt/__init__.py
index a01141fc0a799953b81ed4a0b38d0bd9c35ec358..4cf11d500303ead3d8f86a2c8a578c95dc23e3e7 100644
--- a/python/dune/xt/__init__.py
+++ b/python/dune/xt/__init__.py
@@ -20,7 +20,7 @@ try:
     import metis
 except ImportError:
     pass
-except RuntimeError: # metis actually fires a RuntimeError if the module is installed but the system package not
+except RuntimeError:     # metis actually fires a RuntimeError if the module is installed but the system package not
     pass
 
 from importlib import import_module