diff --git a/lib/session/call-info.js b/lib/session/call-info.js
index f15c1765..01a6bf09 100644
--- a/lib/session/call-info.js
+++ b/lib/session/call-info.js
@@ -144,6 +144,9 @@ class CallInfo {
     if (typeof this.duration === 'number') obj.duration = this.duration;
 
     if (this._customerData) {
+      Object.assign(obj, {customerData: this._customerData});
+      // Duplicate customer data here to respect API contract that was created by bug 
+      //https://github.com/jambonz/jambonz-feature-server/issues/406
       Object.assign(obj, {customerdata: this._customerData});
     }
 
diff --git a/lib/utils/http-requestor.js b/lib/utils/http-requestor.js
index 4e523605..877bf37e 100644
--- a/lib/utils/http-requestor.js
+++ b/lib/utils/http-requestor.js
@@ -87,7 +87,7 @@ class HttpRequestor extends BaseRequestor {
 
     assert(HookMsgTypes.includes(type));
 
-    const payload = params ? snakeCaseKeys(params, ['customerdata', 'sip']) : null;
+    const payload = params ? snakeCaseKeys(params, ['customerdata', 'customerData', 'sip']) : null;
     const url = hook.url || hook;
     const method = hook.method || 'POST';
     let buf = '';
diff --git a/test/create-call-test.js b/test/create-call-test.js
index 7de8cd4d..d8147f56 100644
--- a/test/create-call-test.js
+++ b/test/create-call-test.js
@@ -114,10 +114,14 @@ test('test create-call call-hook basic authentication', async(t) => {
       'create-call: call-hook contains basic authentication header');
     t.ok(obj.body.customerdata.callCount === 10,
       'create-call: call-hook contains correct format for customerData');
+      t.ok(obj.body.customerData.callCount === 10,
+        'create-call: call-hook contains correct format for customerData');
 
       obj = await getJSON(`http:127.0.0.1:3100/lastRequest/${from}_callStatus`);
       t.ok(obj.body.customerdata.callCount === 10,
-        'create-call: call-hook contains correct format for customerData');
+        'create-call: status-hook contains correct format for customerData');
+        t.ok(obj.body.customerData.callCount === 10,
+          'create-call: status-hook contains correct format for customerData');
     disconnect();
   } catch (err) {
     console.log(`error received: ${err}`);