diff --git a/pysat/_meta.py b/pysat/_meta.py
index <HASH>..<HASH> 100644
--- a/pysat/_meta.py
+++ b/pysat/_meta.py
@@ -1067,7 +1067,6 @@ class Meta(object):
                                                 'objects in keys().')))
             for key in other.keys_nD():
                 if key in mdata:
-
                     raise RuntimeError(''.join(('Duplicated keys (variable ',
                                                 'names) across Meta '
                                                 'objects in keys_nD().')))
MAINT: removed unnecesary whitespace

Removed unnecessary blank line before RuntimeError.