diff --git a/lib/serializers/contribution.js b/lib/serializers/contribution.js
index e57365c..149b077 100644
--- a/lib/serializers/contribution.js
+++ b/lib/serializers/contribution.js
@@ -41,6 +41,7 @@ class Contribution {
       kind,
       description,
       url,
+      details
     } = deserialized;
 
     let data = {
@@ -51,7 +52,7 @@ class Contribution {
       },
       kind,
       description,
-      "details": {}
+      "details": details || {}
     };
 
     if (url) {