diff --git a/Class_Diagram.md b/Class_Diagram.md
index 688502a..d75e0c9 100644
--- a/Class_Diagram.md
+++ b/Class_Diagram.md
@@ -43,7 +43,7 @@ package Model <<Frame>> #bada55 {
 
   package Dice #fdb {
   
-    class DieManager $inprogress
+    class DiceGroupManager $inprogress
       
     abstract class Die $inprogress
     
@@ -86,8 +86,8 @@ Turn .. (Die, Face) : [*]
   Face "[1]" -- "[1]" Die
 Turn --> Player
 
-DieManager ..|> IManager
-DieManager --> "[*[*]]" Die
+DiceGroupManager ..|> IManager
+DiceGroupManager --> "[*[*]]" Die
 
 GameManager ..|> IManager
 GameManager --> "[*]" Game