diff --git a/cmd/main.go b/cmd/main.go
index cf8cc47..e799c8e 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -24,7 +24,7 @@ func isLoggedIn(c echo.Context) error {
 }
 
 func init_database() {
-	var err error = nil
+	var err error
 
 	connStr := "postgres://acc:totor@postgres:5432/accounts?sslmode=disable"
 
diff --git a/internal/createLogin.go b/internal/createLogin.go
index 75efd85..140b350 100644
--- a/internal/createLogin.go
+++ b/internal/createLogin.go
@@ -51,7 +51,9 @@ func CreateLogin(db *sql.DB, request RequestLogin) (ResponseLogin, error) {
 	}
 
 	builder := biscuit.NewBuilder(lib.PrivateKey)
-	builder.AddBlock(authority)
+	if err = builder.AddBlock(authority); err != nil {
+		return response, err
+	}
 
 	b, err := builder.Build()
 	if err != nil {
diff --git a/lib/initBiscuit.go b/lib/initBiscuit.go
index d350696..71785d5 100644
--- a/lib/initBiscuit.go
+++ b/lib/initBiscuit.go
@@ -25,7 +25,7 @@ func InitLoginBiscuit() error {
 			return err
 		}
 	} else {
-		var err error = nil
+		var err error
 		PrivateKey, err = ioutil.ReadFile(filePrivateKey)
 		if err != nil {
 			return err
@@ -53,7 +53,7 @@ func InitGlobalBiscuit() error {
 			break
 		}
 	}
-	var err error = nil
+	var err error
 	PrivateKey, err = ioutil.ReadFile(filePrivateKey)
 	if err != nil {
 		return err