diff --git a/binding/get_form.go b/binding/get_form.go
index 7e0ea94..a171788 100644
--- a/binding/get_form.go
+++ b/binding/get_form.go
@@ -19,5 +19,8 @@ func (_ getFormBinding) Bind(req *http.Request, obj interface{}) error {
 	if err := mapForm(obj, req.Form); err != nil {
 		return err
 	}
-	return _validator.ValidateStruct(obj)
+	if err := _validator.ValidateStruct(obj); err != nil {
+		return error(err)
+	}
+	return nil
 }
diff --git a/binding/json.go b/binding/json.go
index 6470e1d..1f38618 100644
--- a/binding/json.go
+++ b/binding/json.go
@@ -21,5 +21,8 @@ func (_ jsonBinding) Bind(req *http.Request, obj interface{}) error {
 	if err := decoder.Decode(obj); err != nil {
 		return err
 	}
-	return _validator.ValidateStruct(obj)
+	if err := _validator.ValidateStruct(obj); err != nil {
+		return error(err)
+	}
+	return nil
 }
diff --git a/binding/post_form.go b/binding/post_form.go
index 0c876d7..dfd7381 100644
--- a/binding/post_form.go
+++ b/binding/post_form.go
@@ -19,5 +19,8 @@ func (_ postFormBinding) Bind(req *http.Request, obj interface{}) error {
 	if err := mapForm(obj, req.PostForm); err != nil {
 		return err
 	}
-	return _validator.ValidateStruct(obj)
+	if err := _validator.ValidateStruct(obj); err != nil {
+		return error(err)
+	}
+	return nil
 }
diff --git a/binding/xml.go b/binding/xml.go
index 69b38a6..70f6293 100644
--- a/binding/xml.go
+++ b/binding/xml.go
@@ -20,5 +20,8 @@ func (_ xmlBinding) Bind(req *http.Request, obj interface{}) error {
 	if err := decoder.Decode(obj); err != nil {
 		return err
 	}
-	return _validator.ValidateStruct(obj)
+	if err := _validator.ValidateStruct(obj); err != nil {
+		return error(err)
+	}
+	return nil
 }