diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/common/utils/BpmnJsonConverterUtil.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/common/utils/BpmnJsonConverterUtil.java
index 2450b8e65..57d00b00e 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/common/utils/BpmnJsonConverterUtil.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/common/utils/BpmnJsonConverterUtil.java
@@ -313,6 +313,12 @@ public final class BpmnJsonConverterUtil {
                 disabledAttribute.setName(ELEMENT_ATTRIBUTE_DISABLED);
                 disabledAttribute.setValue(String.valueOf(i.getDisabled()));
                 button.addAttribute(disabledAttribute);
+
+                ExtensionAttribute typeAttribute = new ExtensionAttribute();
+                typeAttribute.setName(ELEMENT_ATTRIBUTE_TYPE);
+                typeAttribute.setValue(StringUtils.hasText(i.getType()) ? i.getType() : "SYSTEM");
+                button.addAttribute(typeAttribute);
+
                 initiator.addChildElement(button);
             });
             buttonConfigElement.addChildElement(initiator);