1 files changed, 4 insertions, 0 deletions

diff --git a/plugins/check_ping.c b/plugins/check_ping.c
index 0b2afce5..06bf8e76 100644
--- a/plugins/check_ping.c
+++ b/plugins/check_ping.c
@@ -227,7 +227,11 @@ process_arguments (int argc, char **argv)
                         address_family = AF_INET;
                         break;
                 case '6':       /* IPv6 only */
+#ifdef USE_IPV6
                         address_family = AF_INET6;
+#else
+                        usage ("IPv6 support not available\n");
+#endif
                         break;
                 case 'H':       /* hostname */
                         ptr=optarg;