diff --git a/cnpj.go b/cnpj/cnpj.go
similarity index 100%
rename from cnpj.go
rename to cnpj/cnpj.go
diff --git a/cnpj_test.go b/cnpj/cnpj_test.go
similarity index 100%
rename from cnpj_test.go
rename to cnpj/cnpj_test.go
diff --git a/go.mod b/go.mod
index ff333fe..5ef9e55 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
-module github.com/kaduartur/cnpj
+module github.com/kaduartur/go-cnpj
 
 go 1.16