diff --git a/src/login/logind-button.c b/src/login/logind-button.c
index 86c9121f27..5598fb2c0b 100644
--- a/src/login/logind-button.c
+++ b/src/login/logind-button.c
@@ -339,7 +339,7 @@ int button_open(Button *b) {
                 return log_error_errno(errno, "Failed to get input name for %s: %m", p);
 
         (void) button_set_mask(b->name, fd);
-        
+
         b->io_event_source = sd_event_source_unref(b->io_event_source);
         r = sd_event_add_io(b->manager->event, &b->io_event_source, fd, EPOLLIN, button_dispatch, b);
         if (r < 0)