diff --git a/usr.bin/getconf/sysconf.gperf b/usr.bin/getconf/sysconf.gperf
index ae88464a0b74..6a0a34989877 100644
--- a/usr.bin/getconf/sysconf.gperf
+++ b/usr.bin/getconf/sysconf.gperf
@@ -121,7 +121,7 @@ _POSIX_VERSION, _SC_VERSION
 _POSIX_V6_ILP32_OFF32, _SC_V6_ILP32_OFF32
 _POSIX_V6_ILP32_OFFBIG, _SC_V6_ILP32_OFFBIG
 _POSIX_V6_LP64_OFF64, _SC_V6_LP64_OFF64
-_POSIX_V6_LP64_OFFBIG, _SC_V6_LP64_OFFBIG
+_POSIX_V6_LPBIG_OFFBIG, _SC_V6_LPBIG_OFFBIG
 _XOPEN_CRYPT, _SC_XOPEN_CRYPT
 _XOPEN_ENH_I18N, _SC_XOPEN_ENH_I18N
 _XOPEN_LEGACY, _SC_XOPEN_LEGACY