diff --git a/DataRoom/dataroom-core/src/main/java/com/gccloud/dataroom/core/module/chart/bean/Chart.java b/DataRoom/dataroom-core/src/main/java/com/gccloud/dataroom/core/module/chart/bean/Chart.java
index bb80ffef..2f1e0db0 100644
--- a/DataRoom/dataroom-core/src/main/java/com/gccloud/dataroom/core/module/chart/bean/Chart.java
+++ b/DataRoom/dataroom-core/src/main/java/com/gccloud/dataroom/core/module/chart/bean/Chart.java
@@ -88,4 +88,7 @@ public class Chart {
     @ApiModelProperty(notes = "边框配置")
     private Map<String, Object> border;
 
+    @ApiModelProperty(notes = "计算表达式")
+    private String expression;
+
 }