diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBStatementTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBStatementTest.java
index b73fa97d35d89641733c68371347f572abaf9210..18be39e49f94d88b0ba2000d97ee2eb30c1793da 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBStatementTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBStatementTest.java
@@ -35,7 +35,7 @@ public class TSDBStatementTest {
     @Test
     public void executeUpdate() {
         String dbName = "test_" + UUID.randomUUID();
-        dbName = dbName.replace("-", "_");
+        dbName = dbName.replace("-", "_").substring(0,32);
         try {
             int affectRows = stmt.executeUpdate("create database " + dbName);
             Assert.assertEquals(0, affectRows);