diff --git a/a8/udplog.cc b/a8/udplog.cc
index 9e98825..001f8d8 100644
--- a/a8/udplog.cc
+++ b/a8/udplog.cc
@@ -38,7 +38,9 @@ namespace a8
         impl_->save_cond = new std::condition_variable();
 
         impl_->log_level = 0;
-        impl_->debuging = false;
+        #ifdef DEBUG
+        impl_->debuging = true;
+        #endif
         impl_->top_node = nullptr;
         impl_->bot_node = nullptr;
         impl_->work_node = nullptr;