diff --git ucs-school-umc-computerroom/umc/python/computerroom/__init__.py ucs-school-umc-computerroom/umc/python/computerroom/__init__.py
index be3fc630a..127eb4c9f 100644
--- ucs-school-umc-computerroom/umc/python/computerroom/__init__.py
+++ ucs-school-umc-computerroom/umc/python/computerroom/__init__.py
@@ -963,7 +963,10 @@ class Instance(SchoolBaseModule):
             MODULE.info("SMB process: %s" % str(process))
             if process.username and process.username.lower() in veyon_users:
                 MODULE.info("Kill SMB process %s" % process.pid)
-                os.kill(int(process.pid), signal.SIGTERM)
+                try:
+                    os.kill(int(process.pid), signal.SIGTERM)
+                except Exception as exc:
+                    MODULE.warn("Unable to kill SMB process: %s" % exc)
 
     @sanitize(server=StringSanitizer(required=True))
     @check_room_access