diff --git a/lib/solaar/cli/show.py b/lib/solaar/cli/show.py
index 317939ca..8f6b4645 100644
--- a/lib/solaar/cli/show.py
+++ b/lib/solaar/cli/show.py
@@ -196,9 +196,11 @@ def _print_device(dev, num=None):
                 if wheel_status:
                     print('            Wheel Reports: %s' % wheel_status)
             elif feature == _hidpp20.FEATURE.NEW_FN_INVERSION:
-                inverted, default_inverted = _hidpp20.get_new_fn_inversion(dev)
-                print('            Fn-swap:', 'enabled' if inverted else 'disabled')
-                print('            Fn-swap default:', 'enabled' if default_inverted else 'disabled')
+                inversion = _hidpp20.get_new_fn_inversion(dev)
+                if inversion:
+                    inverted, default_inverted = inversion
+                    print('            Fn-swap:', 'enabled' if inverted else 'disabled')
+                    print('            Fn-swap default:', 'enabled' if default_inverted else 'disabled')
             elif feature == _hidpp20.FEATURE.HOSTS_INFO:
                 host_names = _hidpp20.get_host_names(dev)
                 for host, (paired, name) in host_names.items():