From 5aab807b74f6d0ce175a19bfac9674992a0dafb8 Mon Sep 17 00:00:00 2001
From: Jim Holmes <Jim Holmes>
Date: Sun, 12 Oct 2014 23:28:06 +0200
Subject: [PATCH] main fix 1

---
 src/frontend/plotting/plotcurv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/frontend/plotting/plotcurv.c b/src/frontend/plotting/plotcurv.c
index f04ddb65f..a1ec4278c 100644
--- a/src/frontend/plotting/plotcurv.c
+++ b/src/frontend/plotting/plotcurv.c
@@ -137,7 +137,7 @@ ft_graf(struct dvec *v, struct dvec *xs, bool nostart)
             dy = isreal(v) ? v->v_realdata[i] :
                 realpart(v->v_compdata[i]);
             if ((i == 0 || (dir > 0 ? lx > dx : dir < 0 ? lx < dx : 0)) &&
-                xs->v_plot && xs->v_plot->pl_scale == xs)
+                xs->v_plot && xs->v_plot->pl_scale && xs->v_plot->pl_scale == xs)
             {
                 gr_point(v, dx, dy, lx, ly, 0);
             } else {