diff --git a/src/natcap/invest/urban_nature_access.py b/src/natcap/invest/urban_nature_access.py
index 9e06d4419..bff4ddafc 100644
--- a/src/natcap/invest/urban_nature_access.py
+++ b/src/natcap/invest/urban_nature_access.py
@@ -80,7 +80,6 @@
                 'lucode': spec_utils.LULC_TABLE_COLUMN,
                 'urban_nature': {
                     'type': 'ratio',
-                    'units': u.none,
                     'about': (
                         "The proportion (0-1) indicating how much of the land "
                         "in this LULC type is urban nature. "