X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=hacks%2Fdecayscreen.c;h=775e629282f9620aa8442fd2fddb2954e46321f7;hp=855d80a5e45dc819445d4219d838619fd7d18602;hb=07faf451b99879183ed7e909e43a0e065be1ee7f;hpb=49f5b54f312fe4ac2e9bc47581a72451bd0e8439

diff --git a/hacks/decayscreen.c b/hacks/decayscreen.c
index 855d80a5..775e6292 100644
--- a/hacks/decayscreen.c
+++ b/hacks/decayscreen.c
@@ -186,7 +186,7 @@ decayscreen_draw (Display *dpy, Window window, void *closure)
      default: abort();
     }
 
-#define nrnd(x) (random() % (x))
+#define nrnd(x) ((x) ? random() % (x) : x)
 
     if (st->mode == MELT || st->mode == STRETCH) {
       left = nrnd(st->sizex/2);