diff --git a/protocol/goai/goai.go b/protocol/goai/goai.go
index 5359be4ae..e39c11fb4 100644
--- a/protocol/goai/goai.go
+++ b/protocol/goai/goai.go
@@ -240,3 +240,10 @@ func (oai *OpenApiV3) fileMapWithShortTags(m map[string]string) map[string]strin
 func formatRefToBytes(ref string) []byte {
 	return []byte(fmt.Sprintf(`{"$ref":"#/components/schemas/%s"}`, ref))
 }
+
+func isValidTag(key string) bool {
+	if key == "-" {
+		return false
+	}
+	return true
+}
diff --git a/protocol/goai/goai_parameter_ref.go b/protocol/goai/goai_parameter_ref.go
index bbbc3b932..b32f1e33e 100644
--- a/protocol/goai/goai_parameter_ref.go
+++ b/protocol/goai/goai_parameter_ref.go
@@ -74,6 +74,11 @@ func (oai *OpenApiV3) newParameterRefWithStructMethod(field gstructs.Field, path
 	}
 	parameter.Schema = schemaRef
 
+	// Ignore parameter.
+	if !isValidTag(parameter.Name) {
+		return nil, nil
+	}
+
 	// Required check.
 	if parameter.Schema.Value != nil && parameter.Schema.Value.Pattern != "" {
 		if gset.NewStrSetFrom(gstr.Split(parameter.Schema.Value.Pattern, "|")).Contains(patternKeyForRequired) {
diff --git a/protocol/goai/goai_shema.go b/protocol/goai/goai_shema.go
index c4516746e..2c05972ad 100644
--- a/protocol/goai/goai_shema.go
+++ b/protocol/goai/goai_shema.go
@@ -138,6 +138,7 @@ func (oai *OpenApiV3) structToSchema(object interface{}) (*Schema, error) {
 			Properties:  createSchemas(),
 			XExtensions: make(XExtensions),
 		}
+		ignoreProperties []interface{}
 	)
 	if len(tagMap) > 0 {
 		if err := oai.tagMapToSchema(tagMap, schema); err != nil {
@@ -188,8 +189,16 @@ func (oai *OpenApiV3) structToSchema(object interface{}) (*Schema, error) {
 				schema.Required = append(schema.Required, key)
 			}
 		}
+		if !isValidTag(key) {
+			ignoreProperties = append(ignoreProperties, key)
+		}
 		return true
 	})
+
+	if len(ignoreProperties) > 0 {
+		schema.Properties.Removes(ignoreProperties)
+	}
+
 	return schema, nil
 }
 
diff --git a/protocol/goai/goai_shemas.go b/protocol/goai/goai_shemas.go
index 47fa348fa..c8f6c6458 100644
--- a/protocol/goai/goai_shemas.go
+++ b/protocol/goai/goai_shemas.go
@@ -41,6 +41,11 @@ func (s *Schemas) Set(name string, ref SchemaRef) {
 	s.refs.Set(name, ref)
 }
 
+func (s *Schemas) Removes(names []interface{}) {
+	s.init()
+	s.refs.Removes(names)
+}
+
 func (s *Schemas) Map() map[string]SchemaRef {
 	s.init()
 	m := make(map[string]SchemaRef)
diff --git a/protocol/goai/goai_z_unit_test.go b/protocol/goai/goai_z_unit_test.go
index bb209d6b4..e81b04715 100644
--- a/protocol/goai/goai_z_unit_test.go
+++ b/protocol/goai/goai_z_unit_test.go
@@ -831,3 +831,47 @@ func Test_Properties_In_Sequence(t *testing.T) {
 		fmt.Println(oai)
 	})
 }
+
+func TestOpenApiV3_Ignore_Parameter(t *testing.T) {
+	type CommonResponse struct {
+		Code    int         `json:"code"    description:"Error code"`
+		Message string      `json:"message" description:"Error message"`
+		Data    interface{} `json:"data"    description:"Result data for certain request according API definition"`
+	}
+	type ProductSearchReq struct {
+		gmeta.Meta `path:"/test" method:"get"`
+		Product    string `json:"-" in:"query" v:"required|max:5" description:"Unique product key"`
+		Name       string `json:"name"    in:"query"  v:"required" description:"Instance name"`
+	}
+	type ProductSearchRes struct {
+		ID           int64  `json:"-"                         description:"Product ID"`
+		Product      string `json:"product"      v:"required" description:"Unique product key"`
+		TemplateName string `json:"templateName" v:"required" description:"Workflow template name"`
+		Version      string `json:"version"      v:"required" description:"Workflow template version"`
+		TxID         string `json:"txID"         v:"required" description:"Transaction ID for creating instance"`
+		Globals      string `json:"globals"                   description:"Globals"`
+	}
+
+	f := func(ctx context.Context, req *ProductSearchReq) (res *ProductSearchRes, err error) {
+		return
+	}
+
+	gtest.C(t, func(t *gtest.T) {
+		var (
+			err error
+			oai = goai.New()
+		)
+
+		oai.Config.CommonResponse = CommonResponse{}
+
+		err = oai.Add(goai.AddInput{
+			Object: f,
+		})
+		t.AssertNil(err)
+		// Schema asserts.
+		// fmt.Println(oai.String())
+		t.Assert(len(oai.Components.Schemas.Map()), 3)
+		t.Assert(len(oai.Paths), 1)
+		t.Assert(len(oai.Paths["/test"].Get.Responses["200"].Value.Content["application/json"].Schema.Value.Properties.Map()), 8)
+	})
+}