--- a/conmux
+++ b/conmux
@@ -708,7 +708,7 @@
 	$self->{'args'} = $cmd;
 
 	# Start the payload ...
-	$pid = IPC::Open3::open3($wfh, $rfh, 0, "setsid " . $cmd);
+	$pid = IPC::Open3::open3($wfh, $rfh, 0, $cmd);
 
 	$self->{'rfh'} = $rfh;
 	$self->{'wfh'} = $wfh;
