diff --git a/README.md b/README.md
index 491e04d..d64138a 100644
--- a/README.md
+++ b/README.md
@@ -170,6 +170,21 @@ func (v valuer) Value() (sql.Value, error) {
 	return v.Name, nil
 }
 
+// ValidateValuerType implements validator.CustomTypeFunc
+func ValidateValuerType(field reflect.Value) interface{} {
+	if valuer, ok := field.Interface().(sql.Valuer); ok {
+		val, err := valuer.Value()
+		if err != nil {
+			// handle the error how you want
+			return nil
+		}
+
+		return val
+	}
+
+	return nil
+}
+
 func main() {
 
 	customTypes := map[reflect.Type]validator.CustomTypeFunc{}
diff --git a/examples/simple.go b/examples/simple.go
index e58414e..b685dda 100644
--- a/examples/simple.go
+++ b/examples/simple.go
@@ -1,150 +1,165 @@
 package main
 
-// import (
-// 	"errors"
-// 	"fmt"
-// 	"reflect"
-
-// 	sql "database/sql/driver"
-
-// 	"gopkg.in/bluesuncorp/validator.v6"
-// )
-
-// // User contains user information
-// type User struct {
-// 	FirstName      string     `validate:"required"`
-// 	LastName       string     `validate:"required"`
-// 	Age            uint8      `validate:"gte=0,lte=130"`
-// 	Email          string     `validate:"required,email"`
-// 	FavouriteColor string     `validate:"hexcolor|rgb|rgba"`
-// 	Addresses      []*Address `validate:"required,dive,required"` // a person can have a home and cottage...
-// }
-
-// // Address houses a users address information
-// type Address struct {
-// 	Street string `validate:"required"`
-// 	City   string `validate:"required"`
-// 	Planet string `validate:"required"`
-// 	Phone  string `validate:"required"`
-// }
-
-// var validate *validator.Validate
-
-func main() {
-
-// 	config := validator.Config{
-// 		TagName:         "validate",
-// 		ValidationFuncs: validator.BakedInValidators,
-// 	}
-
-// 	validate = validator.New(config)
+import (
+	"errors"
+	"fmt"
+	"reflect"
+
+	sql "database/sql/driver"
+
+	"gopkg.in/bluesuncorp/validator.v6"
+)
+
+// User contains user information
+type User struct {
+	FirstName      string     `validate:"required"`
+	LastName       string     `validate:"required"`
+	Age            uint8      `validate:"gte=0,lte=130"`
+	Email          string     `validate:"required,email"`
+	FavouriteColor string     `validate:"hexcolor|rgb|rgba"`
+	Addresses      []*Address `validate:"required,dive,required"` // a person can have a home and cottage...
+}
 
-// 	validateStruct()
-// 	validateField()
+// Address houses a users address information
+type Address struct {
+	Street string `validate:"required"`
+	City   string `validate:"required"`
+	Planet string `validate:"required"`
+	Phone  string `validate:"required"`
 }
 
-// func validateStruct() {
+var validate *validator.Validate
 
-// 	address := &Address{
-// 		Street: "Eavesdown Docks",
-// 		Planet: "Persphone",
-// 		Phone:  "none",
-// 	}
+func main() {
 
-// 	user := &User{
-// 		FirstName:      "Badger",
-// 		LastName:       "Smith",
-// 		Age:            135,
-// 		Email:          "Badger.Smith@gmail.com",
-// 		FavouriteColor: "#000",
-// 		Addresses:      []*Address{address},
-// 	}
+	config := validator.Config{
+		TagName:         "validate",
+		ValidationFuncs: validator.BakedInValidators,
+	}
 
-// 	// returns nil or ValidationErrors ( map[string]*FieldError )
-// 	errs := validate.Struct(user)
+	validate = validator.New(config)
 
-// 	if errs != nil {
+	validateStruct()
+	validateField()
+}
 
-// 		fmt.Println(errs) // output: Key: "User.Age" Error:Field validation for "Age" failed on the "lte" tag
-// 		//	                         Key: "User.Addresses[0].City" Error:Field validation for "City" failed on the "required" tag
-// 		err := errs["User.Addresses[0].City"]
-// 		fmt.Println(err.Field) // output: City
-// 		fmt.Println(err.Tag)   // output: required
-// 		fmt.Println(err.Kind)  // output: string
-// 		fmt.Println(err.Type)  // output: string
-// 		fmt.Println(err.Param) // output:
-// 		fmt.Println(err.Value) // output:
+func validateStruct() {
+
+	address := &Address{
+		Street: "Eavesdown Docks",
+		Planet: "Persphone",
+		Phone:  "none",
+	}
+
+	user := &User{
+		FirstName:      "Badger",
+		LastName:       "Smith",
+		Age:            135,
+		Email:          "Badger.Smith@gmail.com",
+		FavouriteColor: "#000",
+		Addresses:      []*Address{address},
+	}
+
+	// returns nil or ValidationErrors ( map[string]*FieldError )
+	errs := validate.Struct(user)
+
+	if errs != nil {
+
+		fmt.Println(errs) // output: Key: "User.Age" Error:Field validation for "Age" failed on the "lte" tag
+		//	                         Key: "User.Addresses[0].City" Error:Field validation for "City" failed on the "required" tag
+		err := errs["User.Addresses[0].City"]
+		fmt.Println(err.Field) // output: City
+		fmt.Println(err.Tag)   // output: required
+		fmt.Println(err.Kind)  // output: string
+		fmt.Println(err.Type)  // output: string
+		fmt.Println(err.Param) // output:
+		fmt.Println(err.Value) // output:
+
+		// from here you can create your own error messages in whatever language you wish
+		return
+	}
+
+	// save user to database
+}
 
-// 		// from here you can create your own error messages in whatever language you wish
-// 		return
-// 	}
+func validateField() {
+	myEmail := "joeybloggs.gmail.com"
 
-// 	// save user to database
-// }
+	errs := validate.Field(myEmail, "required,email")
 
-// func validateField() {
-// 	myEmail := "joeybloggs.gmail.com"
+	if errs != nil {
+		fmt.Println(errs) // output: Key: "" Error:Field validation for "" failed on the "email" tag
+		return
+	}
 
-// 	errs := validate.Field(myEmail, "required,email")
+	// email ok, move on
+}
 
-// 	if errs != nil {
-// 		fmt.Println(errs) // output: Key: "" Error:Field validation for "" failed on the "email" tag
-// 		return
-// 	}
+var validate2 *validator.Validate
 
-// 	// email ok, move on
-// }
+type valuer struct {
+	Name string
+}
 
-// var validate2 *validator.Validate
+func (v valuer) Value() (sql.Value, error) {
 
-// type valuer struct {
-// 	Name string
-// }
+	if v.Name == "errorme" {
+		return nil, errors.New("some kind of error")
+	}
 
-// func (v valuer) Value() (sql.Value, error) {
+	if v.Name == "blankme" {
+		return "", nil
+	}
 
-// 	if v.Name == "errorme" {
-// 		return nil, errors.New("some kind of error")
-// 	}
+	if len(v.Name) == 0 {
+		return nil, nil
+	}
 
-// 	if v.Name == "blankme" {
-// 		return "", nil
-// 	}
+	return v.Name, nil
+}
 
-// 	if len(v.Name) == 0 {
-// 		return nil, nil
-// 	}
+// ValidateValuerType implements validator.CustomTypeFunc
+func ValidateValuerType(field reflect.Value) interface{} {
+	if valuer, ok := field.Interface().(sql.Valuer); ok {
+		val, err := valuer.Value()
+		if err != nil {
+			// handle the error how you want
+			return nil
+		}
 
-// 	return v.Name, nil
-// }
+		return val
+	}
 
-// func main2() {
+	return nil
+}
 
-// 	customTypes := map[reflect.Type]validator.CustomTypeFunc{}
-// 	customTypes[reflect.TypeOf((*sql.Valuer)(nil))] = ValidateValuerType
-// 	customTypes[reflect.TypeOf(valuer{})] = ValidateValuerType
+func main2() {
 
-// 	config := validator.Config{
-// 		TagName:         "validate",
-// 		ValidationFuncs: validator.BakedInValidators,
-// 		CustomTypeFuncs: customTypes,
-// 	}
+	customTypes := map[reflect.Type]validator.CustomTypeFunc{}
+	customTypes[reflect.TypeOf((*sql.Valuer)(nil))] = ValidateValuerType
+	customTypes[reflect.TypeOf(valuer{})] = ValidateValuerType
 
-// 	validate2 = validator.New(config)
+	config := validator.Config{
+		TagName:         "validate",
+		ValidationFuncs: validator.BakedInValidators,
+		CustomTypeFuncs: customTypes,
+	}
 
-// 	validateCustomFieldType()
-// }
+	validate2 = validator.New(config)
 
-// func validateCustomFieldType() {
-// 	val := valuer{
-// 		Name: "blankme",
-// 	}
+	validateCustomFieldType()
+}
+
+func validateCustomFieldType() {
+	val := valuer{
+		Name: "blankme",
+	}
 
-// 	errs := validate2.Field(val, "required")
-// 	if errs != nil {
-// 		fmt.Println(errs) // output: Key: "" Error:Field validation for "" failed on the "required" tag
-// 		return
-// 	}
+	errs := validate2.Field(val, "required")
+	if errs != nil {
+		fmt.Println(errs) // output: Key: "" Error:Field validation for "" failed on the "required" tag
+		return
+	}
 
-// 	// all ok
-// }
+	// all ok
+}