diff --git a/src/reducers/schema/sourceSchema.js b/src/reducers/schema/sourceSchema.js
index 3dc17dd..5f12be9 100644
--- a/src/reducers/schema/sourceSchema.js
+++ b/src/reducers/schema/sourceSchema.js
@@ -7,7 +7,7 @@ const sourceSchema = Joi.object().keys({
   affil_1:        Joi.string().allow(''),
   affil_2:        Joi.string().allow(''),
   url:            Joi.string().allow(''),
-  title:          Joi.string().allow(''),
+  desc:          Joi.string().allow(''),
   parent:         Joi.string().allow(''),
   author:         Joi.string().allow(''),
   date:           Joi.string().allow(''),
diff --git a/src/selectors/index.js b/src/selectors/index.js
index e9535a5..0ef170d 100644
--- a/src/selectors/index.js
+++ b/src/selectors/index.js
@@ -170,8 +170,12 @@ export const selectSelected = createSelector(
     // NB: return source object if exists, otherwise null
     const srcs = selected
       .map(e => e.sources)
-      .map(_sources =>
-        _sources.map(id => (sources.hasOwnProperty(id) ? sources[id] : null))
+      .map(_sources => {
+        if (!_sources) return [];
+        return _sources.map(id => (
+          sources.hasOwnProperty(id) ? sources[id] : null
+        ))
+      }
       )
 
     return selected.map((s, idx) => ({