diff --git a/epan/epan.c b/epan/epan.c
index e9f235713b..fb0d67ef78 100644
--- a/epan/epan.c
+++ b/epan/epan.c
@@ -97,7 +97,7 @@ epan_init(const char *plugin_dir, void (*register_all_protocols)(void),
 	final_registration_all_protocols();
 	host_name_lookup_init();
 	expert_init();
-#ifdef HAVE_LUA_5_1_X
+#ifdef HAVE_LUA_5_1
 	wslua_init(NULL);
 #endif