diff --git a/src/client.c b/src/client.c
index 34d5254..8d54598 100644
--- a/src/client.c
+++ b/src/client.c
@@ -558,7 +558,7 @@ client_manage(Window w, XWindowAttributes *wa, Bool ar)
      if(ar)
           arrange(c->screen, True);
 
-     if(conf.client.set_new_win_master)
+     if(!conf.client.set_new_win_master)
           layout_set_client_master(c);
 
      return c;
diff --git a/src/config.c b/src/config.c
index 5829cec..01fa157 100644
--- a/src/config.c
+++ b/src/config.c
@@ -206,7 +206,7 @@ conf_client_section(char *src)
      conf.client.resizecorner_normal = getcolor(get_opt(src, "#222222", "resize_corner_normal").str);
      conf.client.resizecorner_focus  = getcolor(get_opt(src, "#DDDDDD", "resize_corner_focus").str);
      conf.client.mod                 |= char_to_modkey(get_opt(src, "Alt", "modifier").str, key_list);
-     conf.client.set_new_win_master  = get_opt(src, "false", "set_new_win_master").bool;
+     conf.client.set_new_win_master  = get_opt(src, "true", "set_new_win_master").bool;
 
      if((conf.client.nmouse = get_size_sec(src, "mouse")))
      {