diff --git a/BitFaster.Caching.UnitTests/Lfu/NodeMemoryLayoutDumps.cs b/BitFaster.Caching.UnitTests/Lfu/NodeMemoryLayoutDumps.cs
index 3ed11a65..7ac9eea9 100644
--- a/BitFaster.Caching.UnitTests/Lfu/NodeMemoryLayoutDumps.cs
+++ b/BitFaster.Caching.UnitTests/Lfu/NodeMemoryLayoutDumps.cs
@@ -15,7 +15,7 @@ public NodeMemoryLayoutDumps(ITestOutputHelper testOutputHelper)
         }
 
         //Type layout for 'AccessOrderNode`2'
-        //Size: 48 bytes.Paddings: 2 bytes(%4 of empty space)
+        //Size: 48 bytes.Paddings: 4 bytes(%8 of empty space)
         //|====================================================|
         //| Object Header(8 bytes)                             |
         //|----------------------------------------------------|
@@ -31,16 +31,16 @@ public NodeMemoryLayoutDumps(ITestOutputHelper testOutputHelper)
         //|----------------------------------------------------|
         //| 32-39: Object<Value> k__BackingField(8 bytes)      |
         //|----------------------------------------------------|
-        //| 40-43: Position<Position> k__BackingField(4 bytes) |
+        //| 40-41: Position<Position> k__BackingField(2 bytes) |
         //| |===============================|                  |
-        //| |   0-3: Int32 value__(4 bytes) |                  |
+        //| |   0-1: Int16 value__(2 bytes) |                  |
         //| |===============================|                  |
         //|----------------------------------------------------|
-        //|    44: Boolean wasRemoved(1 byte)                  |
+        //|    42: Boolean wasRemoved(1 byte)                  |
         //|----------------------------------------------------|
-        //|    45: Boolean wasDeleted(1 byte)                  |
+        //|    43: Boolean wasDeleted(1 byte)                  |
         //|----------------------------------------------------|
-        //| 46-47: padding(2 bytes)                            |
+        //| 44-47: padding(4 bytes)                            |
         //|====================================================|
         [Fact]
         public void DumpAccessOrderNode()
@@ -49,8 +49,40 @@ public void DumpAccessOrderNode()
             testOutputHelper.WriteLine(layout.ToString());
         }
 
-        //Type layout for 'TimeOrderNode`2'
-        //Size: 72 bytes.Paddings: 2 bytes(%2 of empty space)
+        //Type layout for 'AccessOrderNode`2'
+        //Size: 40 bytes.Paddings: 0 bytes(%0 of empty space)
+        //|====================================================|
+        //| Object Header(8 bytes)                             |
+        //|----------------------------------------------------|
+        //| Method Table Ptr(8 bytes)                          |
+        //|====================================================|
+        //|   0-7: LfuNodeList`2 list(8 bytes)                 |
+        //|----------------------------------------------------|
+        //|  8-15: LfuNode`2 next(8 bytes)                     |
+        //|----------------------------------------------------|
+        //| 16-23: LfuNode`2 prev(8 bytes)                     |
+        //|----------------------------------------------------|
+        //| 24-31: Object<Value> k__BackingField(8 bytes)      |
+        //|----------------------------------------------------|
+        //| 32-35: Int32 Key(4 bytes)                          |
+        //|----------------------------------------------------|
+        //| 36-37: Position<Position> k__BackingField(2 bytes) |
+        //| |===============================|                  |
+        //| |   0-1: Int16 value__(2 bytes) |                  |
+        //| |===============================|                  |
+        //|----------------------------------------------------|
+        //|    38: Boolean wasRemoved(1 byte)                  |
+        //|----------------------------------------------------|
+        //|    39: Boolean wasDeleted(1 byte)                  |
+        //|====================================================|
+        [Fact]
+        public void DumpAccessOrderNode32()
+        {
+            var layout = TypeLayout.GetLayout<AccessOrderNode<int, object>>(includePaddings: true);
+            testOutputHelper.WriteLine(layout.ToString());
+        }
+
+        //Size: 72 bytes.Paddings: 4 bytes(%5 of empty space)
         //|====================================================|
         //| Object Header(8 bytes)                             |
         //|----------------------------------------------------|
@@ -66,16 +98,16 @@ public void DumpAccessOrderNode()
         //|----------------------------------------------------|
         //| 32-39: Object<Value> k__BackingField(8 bytes)      |
         //|----------------------------------------------------|
-        //| 40-43: Position<Position> k__BackingField(4 bytes) |
+        //| 40-41: Position<Position> k__BackingField(2 bytes) |
         //| |===============================|                  |
-        //| |   0-3: Int32 value__(4 bytes) |                  |
+        //| |   0-1: Int16 value__(2 bytes) |                  |
         //| |===============================|                  |
         //|----------------------------------------------------|
-        //|    44: Boolean wasRemoved(1 byte)                  |
+        //|    42: Boolean wasRemoved(1 byte)                  |
         //|----------------------------------------------------|
-        //|    45: Boolean wasDeleted(1 byte)                  |
+        //|    43: Boolean wasDeleted(1 byte)                  |
         //|----------------------------------------------------|
-        //| 46-47: padding(2 bytes)                            |
+        //| 44-47: padding(4 bytes)                            |
         //|----------------------------------------------------|
         //| 48-55: TimeOrderNode`2 prevTime(8 bytes)           |
         //|----------------------------------------------------|
diff --git a/BitFaster.Caching/Lfu/LfuNode.cs b/BitFaster.Caching/Lfu/LfuNode.cs
index 5d37ad5e..e33f57a5 100644
--- a/BitFaster.Caching/Lfu/LfuNode.cs
+++ b/BitFaster.Caching/Lfu/LfuNode.cs
@@ -59,7 +59,7 @@ internal void Invalidate()
         }
     }
 
-    internal enum Position
+    internal enum Position : short
     {
         Window,
         Probation,