diff --git a/examples/javascript/gpio-tool.js b/examples/javascript/gpio-tool.js
index f254bf6..c900252 100644
--- a/examples/javascript/gpio-tool.js
+++ b/examples/javascript/gpio-tool.js
@@ -31,8 +31,10 @@ const rl = readline.createInterface({
 });
 
 function printUsage() {
-    console.log("version     Print version");
-    console.log("get pin     Get pin value");
+    console.log("version         Print version");
+    console.log("get pin         Get pin level");
+    console.log("set pin level   Set pin level");
+    console.log("monitor pin     Monitor pin level changes");
 }
 
 function getVersion() {
@@ -55,7 +57,7 @@ function getPin() {
 }
 
 function onPinLevelChange() {
-    console.log('gpio change');
+    console.log('gpio level change');
 }
 
 function monitorPin() {
@@ -65,6 +67,7 @@ function monitorPin() {
     pin.isr(mraa.EDGE_BOTH, onPinLevelChange);
     rl.question('Press ENTER to stop', function(answer) {
         rl.close();
+        pin.isrExit();
     });
 }