diff --git a/analytic_structure.py b/analytic_structure.py
index 1424e15a3f78ed6f7c77da54ba2db0e18a306913_YW5hbHl0aWNfc3RydWN0dXJlLnB5..781445e6c69ac9a5bf10337d3f642b6d1750e80d_YW5hbHl0aWNfc3RydWN0dXJlLnB5 100644
--- a/analytic_structure.py
+++ b/analytic_structure.py
@@ -313,7 +313,7 @@
                     modifiers = json.loads(elem.attrib.get('modifiers', {}))
                     attrs['modifiers'] = json.dumps({
                         attr: value for attr, value in modifiers.iteritems()
-                        if attr == 'readonly' or
+                        if attr != 'readonly' or
                         elem.attrib.get(attr, 'False') in ('True', 'true', '1')
                     })
                     for attr, value in elem.attrib.iteritems():