diff --git a/thread.c b/thread.c index 9cd676dbb2..45a6d57556 100644 --- a/thread.c +++ b/thread.c @@ -153,7 +153,7 @@ rb_thread_s_debug_set(VALUE self, VALUE val) #define DEBUG_OUT() \ pthread_mutex_lock(&debug_mutex); \ - printf("%8p - %s", pthread_self(), buf); \ + printf("%p - %s", pthread_self(), buf); \ fflush(stdout); \ pthread_mutex_unlock(&debug_mutex);