diff --git a/src/laue_dials/command_line/compute_rmsds.py b/src/laue_dials/command_line/compute_rmsds.py
index 10ac257..a286ff5 100644
--- a/src/laue_dials/command_line/compute_rmsds.py
+++ b/src/laue_dials/command_line/compute_rmsds.py
@@ -13,7 +13,8 @@
 import reciprocalspaceship as rs
 from cctbx import sgtbx
 from dials.util import show_mail_handle_errors
-from dials.util.options import ArgumentParser, reflections_and_experiments_from_files
+from dials.util.options import (ArgumentParser,
+                                reflections_and_experiments_from_files)
 from matplotlib import pyplot as plt
 
 from laue_dials.utils.version import laue_version