Index: trunk/Ohana/src/opihi/dvo/simage.c
===================================================================
--- trunk/Ohana/src/opihi/dvo/simage.c	(revision 3462)
+++ trunk/Ohana/src/opihi/dvo/simage.c	(revision 4689)
@@ -21,5 +21,5 @@
   zero = 17.0;
   range = -5.0;
-  if (N = get_argument (argc, argv, "-m")) {
+  if ((N = get_argument (argc, argv, "-m"))) {
     remove_argument (N, &argc, argv);
     range = atof(argv[N]);