diff --git a/src/tools/pw-top.c b/src/tools/pw-top.c
index 2b7191e7c..08c202497 100644
--- a/src/tools/pw-top.c
+++ b/src/tools/pw-top.c
@@ -272,7 +272,7 @@ static void print_node(struct data *d, struct driver *i, struct node *n)
 			n->driver == n ? "" : " + ",
 			n->name);
 
-	wprintw(d->win, "%.*s\n", COLS, line);
+	wprintw(d->win, "%.*s\n", COLS-1, line);
 }
 
 static void do_refresh(struct data *d)