diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
index d8a4545b53..cb5ec8f463 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
@@ -10,7 +10,7 @@ import static org.junit.Assert.assertEquals;
 
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class ImportTest {
-    Connection connection;
+    static Connection connection;
     String dbName = "test";
     String tName = "t0";
     String host = "127.0.0.1";