diff --git a/src/pynwb/retinotopy.py b/src/pynwb/retinotopy.py
index 55f92a3ff..4382e81d6 100644
--- a/src/pynwb/retinotopy.py
+++ b/src/pynwb/retinotopy.py
@@ -26,7 +26,8 @@
 #             {'name': 'bits_per_pixel', 'type': int,
 #              'doc': 'Number of bits used to represent each value. This is necessary to determine maximum '
 #                     '(white) pixel value.'},
-#             {'name': 'dimension', 'type': Iterable, 'shape': (2, ), 'doc': 'Number of rows and columns in the image.'},
+#             {'name': 'dimension', 'type': Iterable, 'shape': (2, ), 
+#              'doc': 'Number of rows and columns in the image.'},
 #             {'name': 'format', 'type': Iterable, 'doc': 'Format of image. Right now only "raw" supported.'},
 #             {'name': 'field_of_view', 'type': Iterable, 'shape': (2, ), 'doc': 'Size of viewing area, in meters.'})
 #     def __init__(self, **kwargs):