--- ../src-base/minecraft/net/minecraft/client/gui/GuiCreateWorld.java
+++ ../src-work/minecraft/net/minecraft/client/gui/GuiCreateWorld.java
@@ -213,6 +213,8 @@
                     }
                 }
 
+                WorldType.field_77139_a[this.field_146331_K].onGUICreateWorldPress();
+
                 WorldSettings.GameType gametype = WorldSettings.GameType.func_77142_a(this.field_146342_r);
                 WorldSettings worldsettings = new WorldSettings(i, gametype, this.field_146341_s, this.field_146337_w, WorldType.field_77139_a[this.field_146331_K]);
                 worldsettings.func_82750_a(this.field_146334_a);
