diff --git a/libs/storage/Tsavorite/cs/src/core/Index/Tsavorite/HashBucketEntry.cs b/libs/storage/Tsavorite/cs/src/core/Index/Tsavorite/HashBucketEntry.cs
index 3ce675dc325..7da85786a1f 100644
--- a/libs/storage/Tsavorite/cs/src/core/Index/Tsavorite/HashBucketEntry.cs
+++ b/libs/storage/Tsavorite/cs/src/core/Index/Tsavorite/HashBucketEntry.cs
@@ -9,8 +9,9 @@
 
 namespace Tsavorite.core
 {
-    // Long value layout: [1-bit tentative][13-bit TAG][50-bit address]
-    // Physical little endian memory layout: [50-bit address][13-bit TAG][1-bit tentative]
+    // Long value layout: [1-bit tentative][15-bit TAG][48-bit address]
+    // Physical little endian memory layout: [48-bit address][15-bit TAG][1-bit tentative]
+    // The top bit of the 48-bit address is the readcache indicator (see LogAddress).
     [StructLayout(LayoutKind.Explicit, Size = 8)]
     internal struct HashBucketEntry
     {