diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomGetProcessInstanceVariablesToObjectCmd.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomGetProcessInstanceVariablesToObjectCmd.java
index ede5ce0e5..cc6bb5ef8 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomGetProcessInstanceVariablesToObjectCmd.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomGetProcessInstanceVariablesToObjectCmd.java
@@ -347,6 +347,8 @@ public class CustomGetProcessInstanceVariablesToObjectCmd extends AbstractComman
             case "amount":
             case "contacts":
             case "decimal":
+            case "checkbox":
+            case "radio":
                 return VariableObjectDTO.Type.text;
             case "image":
                 return VariableObjectDTO.Type.img;