Index: trunk/Ohana/src/opihi/cmd.data/rdseg.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/rdseg.c	(revision 12902)
+++ trunk/Ohana/src/opihi/cmd.data/rdseg.c	(revision 13040)
@@ -38,5 +38,5 @@
   status = gfits_read_header (argv[2], &buf[0].header);
   sprintf (region, "%d %d %d %d 0 1", x, nx + x, y, ny + y);
-  status = gfits_read_segment (argv[2], &buf[0].matrix, region);
+  status = gfits_read_matrix_segment (argv[2], &buf[0].matrix, region);
   gfits_modify (&buf[0].header, "NAXIS1", "%d", 1, nx);
   gfits_modify (&buf[0].header, "NAXIS2", "%d", 1, ny);