Index: trunk/Ohana/src/opihi/cmd.astro/precess.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.astro/precess.c	(revision 20936)
+++ trunk/Ohana/src/opihi/cmd.astro/precess.c	(revision 27435)
@@ -97,5 +97,5 @@
   opihi_flt *Dv = yvec[0].elements.Flt;
 
-  for (i = 0; i < xvec[0].Nelements; i++, Av, Dv) {
+  for (i = 0; i < xvec[0].Nelements; i++, Av++, Dv++) {
     A = *Av;
     D = *Dv;