diff --git a/grades.go b/grades.go
index c7dca49..5d8a7b8 100644
--- a/grades.go
+++ b/grades.go
@@ -48,8 +48,9 @@ func (gg Grades) Print() {
 // Grades returns a list of the grades of all graded or signed up modules
 func (s *Session) Grades() (Grades, error) {
 	var grades Grades
+
 	client := &http.Client{}
-	url := "https://lsf.hs-worms.de/qisserver/rds?state=notenspiegelStudent&next=list.vm&nextdir=qispos/notenspiegel/student&createInfos=Y&struct=auswahlBaum&nodeID=auswahlBaum%7Cabschluss%3Aabschl%3D05%2Cstgnr%3D1%7Cstudiengang%3Astg%3D938%2Cpversion%3D2018&expand=0&asi=" + s.ASI
+	url := "https://lsf.hs-worms.de/qisserver/rds?state=notenspiegelStudent&next=list.vm&nextdir=qispos/notenspiegel/student&createInfos=Y&struct=auswahlBaum&nodeID=auswahlBaum%7Cabschluss%3Aabschl%3D05%2Cstgnr%3D1%7Cstudiengang%3Astg%3DC37%2Cpversion%3D2018&expand=0&asi=" + s.ASI
 	req, err := http.NewRequest("GET", url, nil)
 	if err != nil {
 		return nil, errors.Wrap(err, "could not prepare the request")