diff --git a/mfr/extensions/tabular/libs/stdlib_tools.py b/mfr/extensions/tabular/libs/stdlib_tools.py
index 5af87b261..fa0e4545f 100644
--- a/mfr/extensions/tabular/libs/stdlib_tools.py
+++ b/mfr/extensions/tabular/libs/stdlib_tools.py
@@ -52,7 +52,7 @@ def csv_stdlib(fp):
         else:
             raise TabularRendererError('csv.Error: {}'.format(e), extension='csv') from e
 
-    del reader
+    del reader  # noqa
     if not columns and not rows:
         raise EmptyTableError('Table empty or corrupt.', extension='csv')
     return {'Sheet 1': (columns, rows)}