--- volnorm-0.8.1.orig/src/normvol.c	2001-08-05 16:36:21.000000000 +0000
+++ volnorm-0.8.1.orig/src/normvol.c	2006-01-13 05:23:51.000000000 +0000
@@ -112,8 +112,10 @@ 
 static void normvol_cleanup(void) {
 	gint channel = 0;
 
-	for (channel = 0; channel < MAX_CHANNELS; ++channel)
+	for (channel = 0; channel < MAX_CHANNELS; ++channel) {
 		SmoothDelete(smooth[channel]);
+		smooth[channel] = NULL;
+	}
 }
 
 static void normvol_configure(void)