diff --git a/runtime/API.js b/runtime/API.js
index <HASH>..<HASH> 100644
--- a/runtime/API.js
+++ b/runtime/API.js
@@ -137,6 +137,8 @@ function buildClass(base, def) {
 
 this._es6now = {
 
+    version: "0.7.1",
+
     class: buildClass,
 
     // Support for iterator protocol
diff --git a/src/NodeRun.js b/src/NodeRun.js
index <HASH>..<HASH> 100644
--- a/src/NodeRun.js
+++ b/src/NodeRun.js
@@ -104,6 +104,8 @@ export function startREPL() {
 
     addExtension();
     
+    console.log(`es6now ${ _es6now.version } (Node ${ process.version })`);
+    
     // Provide a way to load a module from the REPL
     global.loadModule = path => __load(global.require.resolve(path));
     
diff --git a/src/Runtime.js b/src/Runtime.js
index <HASH>..<HASH> 100644
--- a/src/Runtime.js
+++ b/src/Runtime.js
@@ -141,6 +141,8 @@ function buildClass(base, def) {
 
 this._es6now = {
 
+    version: "0.7.1",
+
     class: buildClass,
 
     // Support for iterator protocol
Output the version of es6now and Node when we start the REPL.