diff --git a/src/NotaFiscal.php b/src/NotaFiscal.php
index 5f6fca1..fd078de 100755
--- a/src/NotaFiscal.php
+++ b/src/NotaFiscal.php
@@ -41,10 +41,10 @@ public function ListMunicipalServices($parametos){
     }
 
     public function issueInvoice($id){
-        return $this->http->post('/invoices/'.$id.'/authorize', arrat());
+        return $this->http->post('/invoices/'.$id.'/authorize', array());
     }
 
-    public function create($id){
+    public function create($dadosConta){
         return $this->http->post('/invoices', $dadosConta);
     }
 
@@ -53,7 +53,7 @@ public function update($id, $dadosConta){
     }
 
     public function cancel($id){
-        return $this->http->post('/invoices/'.$id.'/cancel', []);
+        return $this->http->post('/invoices/'.$id.'/cancel', array());
     }
 
 }