diff --git a/cameo/fped2d2z.pl b/cameo/fped2d2z.pl
index dda12ed..e4c5fe9 100755
--- a/cameo/fped2d2z.pl
+++ b/cameo/fped2d2z.pl
@@ -54,6 +54,9 @@ if ($reverse) {
 		    s/^(-?\d+(\.\d*)?)\s+(-?\d+(\.\d*)?)/$3 $1/mg;
 	}
 	%z = %t;
+	print "0 0 $zmax\n\n";
+} else {
+	print "0 0 0\n\n";
 }
 
 # sort, to make output easier to examine manually