diff --git a/ip6tables-standalone.c b/ip6tables-standalone.c
index 4029c1f..1bb81bc 100644
--- a/ip6tables-standalone.c
+++ b/ip6tables-standalone.c
@@ -52,9 +52,14 @@
 	program_name = "ip6tables";
 	program_version = IPTABLES_VERSION;
 
-	lib_dir = getenv("IP6TABLES_LIB_DIR");
-	if (!lib_dir)
-		lib_dir = IP6T_LIB_DIR;
+	lib_dir = getenv("XTABLES_LIBDIR");
+	if (lib_dir == NULL) {
+		lib_dir = getenv("IP6TABLES_LIB_DIR");
+		if (lib_dir != NULL)
+			fprintf(stderr, "IP6TABLES_LIB_DIR is deprecated\n");
+	}
+	if (lib_dir == NULL)
+		lib_dir = XTABLES_LIBDIR;
 
 #ifdef NO_SHARED_LIBS
 	init_extensions();