diff --git a/src/main/java/com/nis/service/impl/ChartServiceImpl.java b/src/main/java/com/nis/service/impl/ChartServiceImpl.java
index 8bcf62c..2e1d1d0 100644
--- a/src/main/java/com/nis/service/impl/ChartServiceImpl.java
+++ b/src/main/java/com/nis/service/impl/ChartServiceImpl.java
@@ -128,6 +128,9 @@ public class ChartServiceImpl extends ServiceImpl<ChartDao, Chart> implements Ch
 		List<ChartElement> chartElements = chartElementService.list();
 		for(ChartElement chartElement:chartElements) {
 			VisualChartElement visualChartElement = new VisualChartElement();
+			String expression = chartElement.getExpression();
+			expression = expression.replaceAll("endpoint=", "endpoint_id=");
+			chartElement.setExpression(expression);
 			BeanUtil.copyProperties(chartElement, visualChartElement);
 			visualChartElements.add(visualChartElement);
 		}