diff --git a/MDFe.Servicos/ConsultaProtocoloMDFe/ServicoMDFeConsultaProtocolo.cs b/MDFe.Servicos/ConsultaProtocoloMDFe/ServicoMDFeConsultaProtocolo.cs
index 000e28879..8259c8d9c 100644
--- a/MDFe.Servicos/ConsultaProtocoloMDFe/ServicoMDFeConsultaProtocolo.cs
+++ b/MDFe.Servicos/ConsultaProtocoloMDFe/ServicoMDFeConsultaProtocolo.cs
@@ -34,11 +34,12 @@
 using MDFe.Classes.Extensoes;
 using MDFe.Classes.Retorno.MDFeConsultaProtocolo;
 using MDFe.Servicos.Factory;
+using MDFe.Servicos.Interfaces;
 using MDFe.Utils.Configuracoes;
 
 namespace MDFe.Servicos.ConsultaProtocoloMDFe
 {
-    public class ServicoMDFeConsultaProtocolo
+    public class ServicoMDFeConsultaProtocolo : IServicoMDFeConsultaProtocolo
     {
         public MDFeRetConsSitMDFe MDFeConsultaProtocolo(string chave, MDFeConfiguracao cfgMdfe = null)
         {
diff --git a/MDFe.Servicos/Interfaces/IServicoMDFeConsultaProtocolo.cs b/MDFe.Servicos/Interfaces/IServicoMDFeConsultaProtocolo.cs
new file mode 100644
index 000000000..6347bf5da
--- /dev/null
+++ b/MDFe.Servicos/Interfaces/IServicoMDFeConsultaProtocolo.cs
@@ -0,0 +1,10 @@
+using MDFe.Classes.Retorno.MDFeConsultaProtocolo;
+using MDFe.Utils.Configuracoes;
+
+namespace MDFe.Servicos.Interfaces
+{
+    public interface IServicoMDFeConsultaProtocolo
+    {
+        MDFeRetConsSitMDFe MDFeConsultaProtocolo(string chave, MDFeConfiguracao cfgMdfe);
+    }
+}