--- ucarp-1.5.1.orig/src/ucarp_p.h
+++ ucarp-1.5.1/src/ucarp_p.h
@@ -1,7 +1,7 @@
 #ifndef __CARP_P_H__
 #define __CARP_P_H__ 1

-static const char *GETOPT_OPTIONS = "i:s:v:p:Pa:hb:k:x:nu:d:r:zf:BoSM";
+static const char *GETOPT_OPTIONS = "i:s:v:p:Pa:hb:k:x:nu:d:r:zf:Bo:SM";

 static struct option long_options[] = {
     { "interface", 1, NULL, 'i' },