diff --git a/src/components/os_label_printer.py b/src/components/os_label_printer.py
index ccab0a4..2801b60 100644
--- a/src/components/os_label_printer.py
+++ b/src/components/os_label_printer.py
@@ -64,16 +64,14 @@ class Os_Label_Printer(Component):
                 label_file = "tmp/label.prn"
                 with open(label_file, "w", errors="surrogateescape") as f:
                     f.write(label_file_contents)
-                if self.platform == "windows":
+                if platform.system().lower() == "windows":
                     cmd = f'print /d:"{self.printer}" "{label_file}"'
-                elif self.platform == "cups":
-                    cmd = f'lp -d "{self.printer}" "{label_file}"'
                 else:
-                    raise NotImplementedError(f"platform {self.platform!r} is not supported")
+                    cmd = f'lp -d "{self.printer}" "{label_file}"'
                 if not self.simulate:
                     p = subprocess.run(cmd, stderr=subprocess.STDOUT, stdout=subprocess.PIPE, shell=True)  # unsafe
                     if p.returncode != 0:
-                        self.log.exception(f"failed to print: returncode: {p.returncode}\noutput:\n{p.stdout}")
+                        self.log.exception(f"failed to print: return code: {p.returncode}\noutput:\n{p.stdout}")
                         QMessageBox.critical(
                             None,
                             "Errore Stampante",