diff --git a/packages/mongoose-filter-query/src/index.js b/packages/mongoose-filter-query/src/index.js
index 2158959..f0f6282 100644
--- a/packages/mongoose-filter-query/src/index.js
+++ b/packages/mongoose-filter-query/src/index.js
@@ -31,8 +31,8 @@ const mongooseFilterQuery = (req, res, next) => {
     } else {
       req.query.sort = {};
     }
-    req.query.include = req.query.include?.split(",") ?? [];
-    req.query.select = req.query.select?.split(",")?.join(" ") ?? "";
+    req.query.include = req.query.include?.split(",");
+    req.query.select = req.query.select?.split(",")?.join(" ");
   } catch (e) {
     console.error("[ FilterQuery ] - Failed to parse query", e);
   }
diff --git a/packages/mongoose-filter-query/test/index.test.js b/packages/mongoose-filter-query/test/index.test.js
index e4b206d..d19eb7c 100644
--- a/packages/mongoose-filter-query/test/index.test.js
+++ b/packages/mongoose-filter-query/test/index.test.js
@@ -46,7 +46,7 @@ describe("test mongoose-filter-query", () => {
     });
     test("undefined", async () => {
       mongooseFilterQuery(req, {}, () => {});
-      expect(req.query.include).toEqual([]);
+      expect(req.query.include).toEqual(undefined);
     });
   });
   describe("select", () => {
@@ -56,7 +56,7 @@ describe("test mongoose-filter-query", () => {
     });
     test("undefined", async () => {
       mongooseFilterQuery(req, {}, () => {});
-      expect(req.query.select).toEqual("");
+      expect(req.query.select).toEqual(undefined);
     });
   });
   test("handle error", async () => {