diff --git a/nodejs.admin.inc b/nodejs.admin.inc
index 9585f6e..9246351 100644
--- a/nodejs.admin.inc
+++ b/nodejs.admin.inc
@@ -46,7 +46,13 @@ function nodejs_settings() {
     '#required' => TRUE,
     '#description' => $description,
   );
-
+  $form['server']['nodejs_service_key'] = array(
+    '#type' => 'textfield',
+    '#title' => t('Node.js service key'),
+    '#default_value' => variable_get('nodejs_service_key', ''),
+    '#size' => 40,
+    '#description' => t('The service key you entered in your nodejs.config.js'),
+  );
   return system_settings_form($form);
 }
 
diff --git a/nodejs.install b/nodejs.install
index f3dbea2..24297c8 100644
--- a/nodejs.install
+++ b/nodejs.install
@@ -38,6 +38,7 @@ function nodejs_uninstall() {
   variable_del('nodejs_config_publishUrl');
   variable_del('nodejs_config_write_channels');
   variable_del('nodejs_config_write_clients');
+  variable_del('nodejs_service_key');
 }
 
 /**
diff --git a/nodejs.module b/nodejs.module
index 44ba0ec..493b7b6 100644
--- a/nodejs.module
+++ b/nodejs.module
@@ -994,8 +994,14 @@ class Nodejs {
       }
       return FALSE;
     }
-    // No errors, so return Node.js server response.
-    return json_decode($response->data);
+   // No errors in the request, let's test for an error reported into the response.
+    $message = json_decode($response->data);
+    if (isset($message->error)) {
+      drupal_set_message(t('Something could be wrong with your Nodejs service key. Please check your nodejs.config.js match t
he value in !url', array('!url' => l(t("your module configuration"), "admin/config/nodejs/config"))), 'warning');
+      return FALSE;
+    }
+    // No errors into the message neither. Let's return the message.
+    return $message;
   }
 }