diff --git a/config.h b/config.h
index 8795378..c21fba9 100644
--- a/config.h
+++ b/config.h
@@ -68,6 +68,8 @@ static const struct arg args[] = {
 	{ load_avg,		" %s |",		NULL		},
 	{ ram_used,		" %sB /",		NULL		},
 	{ ram_free,		" %sB |",		NULL		},
+	{ swap_used,		" %sB /",		NULL		},
+	{ swap_free,		" %sB |",		NULL		},
 	{ netspeed_rx,		" %7.7sB/s",		"twg0"		},
 	{ netspeed_tx,		" %7.7sB/s |",		"twg0"		},
 	{ uptime,		" %s |",		NULL		},