diff --git a/SDK/message/card_builder.go b/SDK/message/card_builder.go
index 008e160..3d1e17a 100644
--- a/SDK/message/card_builder.go
+++ b/SDK/message/card_builder.go
@@ -115,7 +115,7 @@ func (builder *CardBuilder) AddImageBlock(title *protocol.TextForm, alt protocol
 }
 
 // add action block
-func (builder *CardBuilder) AddActionBlock(actions []protocol.ActionElement) *CardBuilder {
+func (builder *CardBuilder) AddActionBlock(actions []protocol.ActionElement, layout string) *CardBuilder {
 	// generate a new session
 	if builder.Session == nil {
 		sid := uuid.New().String()
@@ -129,6 +129,8 @@ func (builder *CardBuilder) AddActionBlock(actions []protocol.ActionElement) *Ca
 	}
 	act.Actions = actions
 
+	act.Layout = layout
+
 	if builder.currentLocale != "" {
 		builder.i18nBlocks[builder.currentLocale] = append(builder.i18nBlocks[builder.currentLocale], act)
 	} else {
diff --git a/SDK/protocol/card_element.go b/SDK/protocol/card_element.go
index 2ecdee8..51a4962 100644
--- a/SDK/protocol/card_element.go
+++ b/SDK/protocol/card_element.go
@@ -328,6 +328,7 @@ type ImageBlockForm struct {
 type ActionBlockForm struct {
 	Tag     string          `json:"tag,omitempty" validate:"omitempty"`
 	Actions []ActionElement `json:"actions,omitempty" validate:"omitempty"`
+	Layout  string          `json:"layout,omitempty" validate:"omitempty"`
 }
 
 // card block - note