diff --git a/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiConfigServiceImpl.java b/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiConfigServiceImpl.java
index 52ed5be6d..19eefedd6 100644
--- a/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiConfigServiceImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiConfigServiceImpl.java
@@ -104,7 +104,7 @@ public class AiConfigServiceImpl implements IAiConfigService {
             }
             int backfilled = 0;
             for (StreamProxy proxy : nullCodeProxies) {
-                String cameraCode = CameraCodeUtil.generate(proxy.getSrcUrl());
+                String cameraCode = CameraCodeUtil.generate(streamProxyMapper);
                 streamProxyMapper.updateCameraCode(proxy.getId(), cameraCode);
                 backfilled++;
                 log.info("[AiConfig] 回填 camera_code: id={}, app={}, stream={} → {}",