diff --git a/prusa/link/serial/serial_adapter.py b/prusa/link/serial/serial_adapter.py
index f85f4027..3ad64cae 100644
--- a/prusa/link/serial/serial_adapter.py
+++ b/prusa/link/serial/serial_adapter.py
@@ -196,7 +196,7 @@ def _reopen(self) -> bool:
                 paths.extend(glob.glob("/dev/ttyUSB*"))
             else:
                 # Follow symlinks to the real device file
-                device_path = os.path.relpath(self.configured_port)
+                device_path = os.path.realpath(self.configured_port)
                 paths = [device_path]
 
             # Pair the usb printer paths with their serial numbers