Index: trunk/Ohana/src/opihi/dvo/detrend.c
===================================================================
--- trunk/Ohana/src/opihi/dvo/detrend.c	(revision 27435)
+++ trunk/Ohana/src/opihi/dvo/detrend.c	(revision 28241)
@@ -137,5 +137,5 @@
 
   /* load existing data from database */
-  gfits_scan (&header, "NIMAGES", "%lld", 1, (long long *) &Nimage);
+  gfits_scan (&header, "NIMAGES", OFF_T_FMT, 1,  &Nimage);
   ALLOCATE (pimage, RegImage, Nimage);
   status = fread (pimage, sizeof(RegImage), Nimage, f);
@@ -143,5 +143,5 @@
 
   if (status != Nimage) {
-    gprint (GP_ERR, "ERROR: header and data in dB don't match (%lld vs %lld)\n", (long long) Nimage, (long long) status);
+    gprint (GP_ERR, "ERROR: header and data in dB don't match ("OFF_T_FMT" vs "OFF_T_FMT")\n",  Nimage,  status);
     gfits_free_header (&header);
     free (pimage);