diff --git a/lib/bindings/http/binary_0_1.js b/lib/bindings/http/binary_0_1.js
index 2454ec3..7cbe2ed 100644
--- a/lib/bindings/http/binary_0_1.js
+++ b/lib/bindings/http/binary_0_1.js
@@ -18,6 +18,7 @@ HTTPBinary.prototype.emit = function(cloudevent){
   _headers["Content-Type"] = cloudevent.getContenttype();
 
   _headers["CE-EventType"] = cloudevent.getType();
+  _headers["CE-EventTypeVersion"] = cloudevent.getEventTypeVersion();
   _headers["CE-CloudEventsVersion"] = cloudevent.getSpecversion();
 
   _headers["CE-Source"] = cloudevent.getSource();
diff --git a/lib/specs/spec_0_1.js b/lib/specs/spec_0_1.js
index aca4164..b458642 100644
--- a/lib/specs/spec_0_1.js
+++ b/lib/specs/spec_0_1.js
@@ -15,7 +15,11 @@ function Spec01(_caller){
    * Inject the method to set the version related to data attribute.
    */
   this.caller.prototype.eventTypeVersion = function(_version){
-    this.spec.eventTypeVersion(_version);
+    return this.spec.eventTypeVersion(_version);
+  };
+
+  this.caller.prototype.getEventTypeVersion = function(){
+    return this.spec.getEventTypeVersion();
   };
 }
 
@@ -50,6 +54,10 @@ Spec01.prototype.eventTypeVersion = function(version){
   return this;
 };
 
+Spec01.prototype.getEventTypeVersion = function() {
+  return this.payload["eventTypeVersion"];
+};
+
 Spec01.prototype.source = function(_source){
   this.payload["source"] = _source;
   return this;
diff --git a/test/http_binding_0_1.js b/test/http_binding_0_1.js
index 89278ae..38e6a0c 100644
--- a/test/http_binding_0_1.js
+++ b/test/http_binding_0_1.js
@@ -27,6 +27,8 @@ var cloudevent =
     .schemaurl(schemaurl)
     .data(data);
 
+cloudevent.eventTypeVersion("1.0.0");
+
 var httpcfg = {
   method : "POST",
   url    : webhook + "/json"