diff --git a/src/api/aiSupervision/layerConfigApi.js b/src/api/aiSupervision/layerConfigApi.js
index 95dd1d3..34d80d2 100644
--- a/src/api/aiSupervision/layerConfigApi.js
+++ b/src/api/aiSupervision/layerConfigApi.js
@@ -212,7 +212,7 @@ export function queryServiceInfoApi(url, layer) {
           }
         } else if (nameArr.length === 2) {
           let layerName = nameArr[1];
-          layerNameArr = layerName.split(":");
+          let layerNameArr = layerName.split(":");
           const newUrl = `${nameArr[0]}/rest/data/datasources/${layerNameArr[0]}/datasets/${layerNameArr[1]}/fields.json?k=${token}`;
           const result = await axios.get(newUrl);
           if (result.status === 200 && result.data) {