diff --git a/src/libs/routes_v1/yearsOfStudy.js b/src/libs/routes_v1/yearsOfStudy.js
index d3dc226a33e22efe41c9f8ae2e6a5c6c51bb8702..d2f71a31540a0451b7a882efe1d54b716d08d10b 100644
--- a/src/libs/routes_v1/yearsOfStudy.js
+++ b/src/libs/routes_v1/yearsOfStudy.js
@@ -516,7 +516,7 @@ PnadNovoApp.get('/', rqf.parse(), rqf.build(),  (req, res, next) => {
     
     let teste = "pnad_novo.ano_ref = media.ano_ref"
     if (req.dims) {
-        for (i in req.dims) {
+        for (let i in req.dims) {
             teste += ` and pnad_novo.${i.table} = media.${i.tableField}`
         }
     }