diff --git a/sway/gammastep.pl b/sway/gammastep.pl
index 69878af..7a84a37 100755
--- a/sway/gammastep.pl
+++ b/sway/gammastep.pl
@@ -13,6 +13,13 @@ my $lat_lon = fetch_lat_lon($location);
 
 my $pid = fork;
 unless ($pid) {
+        open(my $fh, ">", $ENV{HOME}."/.spool/gammastep.pid");
+        print $fh $$;
+        close($fh);
+        open($fh, ">", $ENV{HOME}."/.spool/gammastep.status");
+        print $fh 1;
+        close($fh);
+
         open STDIN,  '/dev/null';
         open STDOUT, '>>/dev/null';
         open STDERR, '>>/dev/null';