--- ../src-base/minecraft/net/minecraft/client/gui/GuiSelectWorld.java
+++ ../src-work/minecraft/net/minecraft/client/gui/GuiSelectWorld.java
@@ -187,7 +187,7 @@
 
             if (this.field_146297_k.func_71359_d().func_90033_f(s))
             {
-                this.field_146297_k.func_71371_a(s, s1, (WorldSettings)null);
+                net.minecraftforge.fml.client.FMLClientHandler.instance().tryLoadExistingWorld(this, s, s1);
             }
         }
     }
