diff --git a/plugin.xml b/plugin.xml
index cba35fc..fd25600 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -11,7 +11,7 @@
          </feature>
       </config-file>
       <config-file parent="/*" target="AndroidManifest.xml" />
-      <source-file src="src/android/ReadAppSignature.java" target-dir="src/cordova/plugin/appSignature/ReadAppSignature" />
+      <source-file src="src/android/ReadAppSignature.java" target-dir="src/cordova/plugin/appSignature" />
    </platform>
 </plugin>
 
diff --git a/readme.md b/readme.md
index 58fcaed..9797652 100644
--- a/readme.md
+++ b/readme.md
@@ -23,11 +23,11 @@ You can read more about it on [Android official website](https://source.android.
 
 ```javascript
  
- cordova.exec(function success(signature){
-        //Check signature
-    }, function failure(error){
-        //alert("Something went wrong");
-    }, "ReadAppSignature", "getAppSignature", []);
+  cordova.plugins.ReadAppSignature.getAppSignature(function(signature){
+    console.debug("signature: %s", signature);
+  }, function(error){
+    console.debug("signature error: %s", JSON.stringify(error));
+  });
 
 ```
 
diff --git a/src/android/ReadAppSignature.java b/src/android/ReadAppSignature.java
index 6c06011..40ebd45 100644
--- a/src/android/ReadAppSignature.java
+++ b/src/android/ReadAppSignature.java
@@ -1,12 +1,13 @@
 package cordova.plugin.appSignature;
 
+import android.util.Log;
+
 import org.apache.cordova.CordovaPlugin;
 import org.apache.cordova.CallbackContext;
 import org.apache.cordova.PluginResult;
 
 import org.json.JSONArray;
 import org.json.JSONException;
-import org.json.JSONObject;
 
 import android.annotation.SuppressLint;
 import android.content.pm.PackageInfo;
@@ -22,6 +23,7 @@ import java.security.NoSuchProviderException;
  * This class echoes a string called from JavaScript.
  */
 public class ReadAppSignature extends CordovaPlugin {
+    private final String TAG = "ReadAppSignature";
 
     @Override
     public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
@@ -46,9 +48,10 @@ public class ReadAppSignature extends CordovaPlugin {
                     cordova.getActivity().getPackageName(), PackageManager.GET_SIGNATURES);
 
             //note sample just checks the first signature
-            for (Signature signature : packageInfo.signatures) {
-                // SHA1 the signature
-                LogUtils.LOGD(TAG, "getAppSignature() called : " + getSHA1(signature.toByteArray()));
+            Signature[] signatures = packageInfo.signatures;
+            if (signatures.length > 0) {
+                Signature signature = signatures[0];
+                Log.d(TAG, "getAppSignature() called : " + getSHA1(signature.toByteArray()));
                 return getSHA1(signature.toByteArray());
             }
         } catch (PackageManager.NameNotFoundException e) {
diff --git a/www/ReadAppSignature.js b/www/ReadAppSignature.js
index 7440283..215255a 100644
--- a/www/ReadAppSignature.js
+++ b/www/ReadAppSignature.js
@@ -1,5 +1,5 @@
 var exec = require('cordova/exec');
 
-exports.getAppSignature = function (arg0, success, error) {
-    exec(success, error, 'ReadAppSignature', 'getAppSignature', [arg0]);
+exports.getAppSignature = function (success, error) {
+    exec(success, error, 'ReadAppSignature', 'getSignature', []);
 };