diff --git a/das/src/main/java/com/das/modules/data/service/TDEngineService.java b/das/src/main/java/com/das/modules/data/service/TDEngineService.java
index ab5c991b..a094343b 100644
--- a/das/src/main/java/com/das/modules/data/service/TDEngineService.java
+++ b/das/src/main/java/com/das/modules/data/service/TDEngineService.java
@@ -350,7 +350,7 @@ public class TDEngineService {
                     sb.append("c");
                     sb.append(dv.getDeviceId());
                     sb.append(" using c_");
-                    sb.append(dv.getModelCode());
+                    sb.append(dv.getDeviceId().toString());
                     sb.append("_").append(dv.getIotModelField());
                     sb.append(" tags (");
                     sb.append(dv.getDeviceId());