diff --git a/sqlite3_test.go b/sqlite3_test.go
index 2340014..c34f0b5 100644
--- a/sqlite3_test.go
+++ b/sqlite3_test.go
@@ -660,43 +660,43 @@ func TestExecer(t *testing.T) {
 	}
 }
 
-//func TestQueryer(t *testing.T) {
-//	tempFilename := TempFilename()
-//	db, err := sql.Open("sqlite3", tempFilename)
-//	if err != nil {
-//		t.Fatal("Failed to open database:", err)
-//	}
-//	defer os.Remove(tempFilename)
-//	defer db.Close()
-//
-//	_, err = db.Exec(`
-//	create table foo (id integer);
-//	`)
-//	if err != nil {
-//		t.Error("Failed to call db.Query:", err)
-//	}
-//
-//	rows, err := db.Query(`
-//	insert into foo(id) values(?);
-//	insert into foo(id) values(?);
-//	insert into foo(id) values(?);
-//	select id from foo order by id;
-//	`, 3, 2, 1)
-//	if err != nil {
-//		t.Error("Failed to call db.Query:", err)
-//	}
-//	defer rows.Close()
-//	n := 1
-//	if rows != nil {
-//		for rows.Next() {
-//			var id int
-//			err = rows.Scan(&id)
-//			if err != nil {
-//				t.Error("Failed to db.Query:", err)
-//			}
-//			if id != n {
-//				t.Error("Failed to db.Query: not matched results")
-//			}
-//		}
-//	}
-//}
+func TestQueryer(t *testing.T) {
+	tempFilename := TempFilename()
+	db, err := sql.Open("sqlite3", tempFilename)
+	if err != nil {
+		t.Fatal("Failed to open database:", err)
+	}
+	defer os.Remove(tempFilename)
+	defer db.Close()
+
+	_, err = db.Exec(`
+	create table foo (id integer);
+	`)
+	if err != nil {
+		t.Error("Failed to call db.Query:", err)
+	}
+
+	rows, err := db.Query(`
+	insert into foo(id) values(?);
+	insert into foo(id) values(?);
+	insert into foo(id) values(?);
+	select id from foo order by id;
+	`, 3, 2, 1)
+	if err != nil {
+		t.Error("Failed to call db.Query:", err)
+	}
+	defer rows.Close()
+	n := 1
+	if rows != nil {
+		for rows.Next() {
+			var id int
+			err = rows.Scan(&id)
+			if err != nil {
+				t.Error("Failed to db.Query:", err)
+			}
+			if id != n {
+				t.Error("Failed to db.Query: not matched results")
+			}
+		}
+	}
+}