diff --git a/srv/poe_manager/app.py b/srv/poe_manager/app.py
index 25c48ea..1c74d68 100644
--- a/srv/poe_manager/app.py
+++ b/srv/poe_manager/app.py
@@ -231,9 +231,8 @@ def devices():
 
                 old_switch = device['switch_hostname'] or "unbekannt"
                 device_name = device['name']
-                switch_hostname = request.form.get('switch_hostname')
-                if switch_hostname == "":
-                    switch_hostname = None
+                switch_hostname = request.form.get('switch_hostname') or ""
+                
                 try:
                     conn.execute("""
                         UPDATE devices