diff --git a/src/calcurse.c b/src/calcurse.c
index 0ae7e9a..4a16cdb 100644
--- a/src/calcurse.c
+++ b/src/calcurse.c
@@ -283,6 +283,8 @@ main (int argc, char **argv)
                 case 'S':
                   custom_sidebar_config ();
                   break;
+                default:
+                  continue;
                 }
               wins_reset ();
               wins_update ();