diff --git a/examples/react-example1/src/App.js b/examples/react-example1/src/App.js
index d8abc45..27aaa8a 100644
--- a/examples/react-example1/src/App.js
+++ b/examples/react-example1/src/App.js
@@ -28,7 +28,7 @@ class App extends React.Component {
     window.web3 = web3;
 
     this.setState({
-      title: subspace.trackProperty(Product, "products", [0]).pipe(map(x => x.title)),
+      title: subspace.trackProperty(Product, "products", 0).pipe(map(x => x.title)),
       averageRating: rating$.pipe($average()),
       minRating: rating$.pipe($min()),
       maxRating: rating$.pipe($max()),
diff --git a/src/subspace.js b/src/subspace.js
index 43ff124..b05bb48 100644
--- a/src/subspace.js
+++ b/src/subspace.js
@@ -95,6 +95,10 @@ export default class Subspace {
   trackProperty(contractInstance, propName, methodArgs = [], callArgs = {}) {
     const sub = new ReplaySubject();
 
+    if (!Array.isArray(methodArgs)) {
+      methodArgs = [methodArgs]
+    }
+
     const method = contractInstance.methods[propName].apply(contractInstance.methods[propName], methodArgs)
     const callContractMethod = () => {
       method.call.apply(method.call, [callArgs, (err, result) => {