diff --git a/src/entities/EntityDatabase.js b/src/entities/EntityDatabase.js
index <HASH>..<HASH> 100644
--- a/src/entities/EntityDatabase.js
+++ b/src/entities/EntityDatabase.js
@@ -15,6 +15,7 @@ BookCitation.schema = {
   day: { type: 'string', optional: true },
   fpage: { type: 'string', optional: true },
   lpage: { type: 'string', optional: true },
+  elocationId: { type: 'string', optional: true },
   pageRange: { type: 'string', optional: true }
 }
 
@@ -33,6 +34,7 @@ JournalCitation.schema = {
   fpage: { type: 'string', optional: true },
   lpage: { type: 'string', optional: true },
   pageRange: { type: 'string', optional: true },
+  elocationId: { type: 'string', optional: true },
   doi: { type: 'string', optional: true}
 }
Add elocation-id property.