diff --git a/src/if_lua.c b/src/if_lua.c
index 5803d07..b77a3cd 100644
--- a/src/if_lua.c
+++ b/src/if_lua.c
@@ -398,14 +398,15 @@
     }
     return OK;
 }
+#endif /* DYNAMIC_LUA */
 
+#if defined(DYNAMIC_LUA) || defined(PROTO)
     int
 lua_enabled(int verbose)
 {
     return lua_link_init((char *)p_luadll, verbose) == OK;
 }
-
-#endif /* DYNAMIC_LUA */
+#endif
 
 #if LUA_VERSION_NUM > 501
     static int