diff --git a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/CompleteTaskBo.java b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/CompleteTaskBo.java
index e5befff75..360fc3b81 100644
--- a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/CompleteTaskBo.java
+++ b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/CompleteTaskBo.java
@@ -70,7 +70,8 @@ public class CompleteTaskBo implements Serializable {
 
     public Map<String, Object> getVariables() {
         if (variables == null) {
-            return new HashMap<>(16);
+            variables = new HashMap<>(16);
+            return variables;
         }
         variables.entrySet().removeIf(entry -> Objects.isNull(entry.getValue()));
         return variables;