diff --git a/src/test/java/com/alibaba/druid/bvt/bug/Bug_for_happyday517.java b/src/test/java/com/alibaba/druid/bvt/bug/Bug_for_happyday517.java
index 7fdd80e1b8..ef8d8108e4 100644
--- a/src/test/java/com/alibaba/druid/bvt/bug/Bug_for_happyday517.java
+++ b/src/test/java/com/alibaba/druid/bvt/bug/Bug_for_happyday517.java
@@ -18,7 +18,7 @@ public class Bug_for_happyday517 extends TestCase {
     protected void setUp() throws Exception {
         dataSource = new DruidDataSource();
         dataSource.setUrl("jdbc:mock:xxx");
-        dataSource.setFilters("stat,trace,log");
+        dataSource.setFilters("stat,trace,log,encoding");
 
     }