diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/usos/data/api/UsosApiUser.kt b/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/usos/data/api/UsosApiUser.kt
index 29a3e22b..806c2fd8 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/usos/data/api/UsosApiUser.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/usos/data/api/UsosApiUser.kt
@@ -53,7 +53,7 @@ class UsosApiUser(
             data.studentId = json.getInt("id") ?: data.studentId
             profile?.studentNameLong = studentName
             profile?.studentNameShort = studentName.getShortName()
-            profile?.studentNumber = json.getInt("student_number", -1)
+            profile?.studentNumber = json.getString("student_number")?.replace(Regex("[^0-9]"), "")?.toIntOrNull() ?: -1
             profile?.studentClassName = programmes.getJsonObject(0).getJsonObject("programme").getString("id")
 
             profile?.studentClassName?.let {
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/usos/firstlogin/UsosFirstLogin.kt b/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/usos/firstlogin/UsosFirstLogin.kt
index 4d900673..32c9c4c5 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/usos/firstlogin/UsosFirstLogin.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/usos/firstlogin/UsosFirstLogin.kt
@@ -68,7 +68,7 @@ class UsosFirstLogin(val data: DataUsos, val onSuccess: () -> Unit) {
                         "studentId" to json.getInt("id"),
                     ),
                 ).also {
-                    it.studentNumber = json.getInt("student_number", -1)
+                    it.studentNumber = json.getString("student_number")?.replace(Regex("[^0-9]"), "")?.toIntOrNull() ?: -1
                     it.studentClassName = programmes.getJsonObject(0).getJsonObject("programme").getString("id")
                 }