diff --git a/src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/SOSDacImpl.cs b/src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/SOSDacImpl.cs
index d67adff3ab3489..c469ee4898f43e 100644
--- a/src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/SOSDacImpl.cs
+++ b/src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/SOSDacImpl.cs
@@ -2937,6 +2937,8 @@ int ISOSDacInterface.GetMethodTableForEEClass(ClrDataAddress eeClassReallyCanonM
     int ISOSDacInterface.GetMethodTableName(ClrDataAddress mt, uint count, char* mtName, uint* pNeeded)
     {
         int hr = HResults.S_OK;
+        char[] mtNametest = new char[4096];
+        uint counttest = 4096;
         try
         {
             if (mt == 0)
@@ -2946,6 +2948,10 @@ int ISOSDacInterface.GetMethodTableName(ClrDataAddress mt, uint count, char* mtN
             Contracts.TypeHandle methodTableHandle = typeSystemContract.GetTypeHandle(mt.ToTargetPointer(_target, overrideCheck: true));
             if (typeSystemContract.IsFreeObjectMethodTable(methodTableHandle))
             {
+                fixed (char* pMtNametest = mtNametest)
+                {
+                    OutputBufferHelpers.CopyStringToBuffer(pMtNametest, counttest, pNeeded, "Free");
+                }
                 OutputBufferHelpers.CopyStringToBuffer(mtName, count, pNeeded, "Free");
             }
             else
@@ -2954,6 +2960,10 @@ int ISOSDacInterface.GetMethodTableName(ClrDataAddress mt, uint count, char* mtN
                 Contracts.ModuleHandle moduleHandle = loader.GetModuleHandleFromModulePtr(modulePointer);
                 if (!loader.TryGetLoadedImageContents(moduleHandle, out _, out _, out _))
                 {
+                    fixed (char* pMtNametest = mtNametest)
+                    {
+                        OutputBufferHelpers.CopyStringToBuffer(pMtNametest, counttest, pNeeded, "<Unloaded Type>");
+                    }
                     OutputBufferHelpers.CopyStringToBuffer(mtName, count, pNeeded, "<Unloaded Type>");
                 }
                 else
@@ -2972,6 +2982,10 @@ int ISOSDacInterface.GetMethodTableName(ClrDataAddress mt, uint count, char* mtN
                             methodTableName.Append(fallbackName);
                         }
                     }
+                    fixed (char* pMtNametest = mtNametest)
+                    {
+                    OutputBufferHelpers.CopyStringToBuffer(pMtNametest, counttest, pNeeded, methodTableName.ToString());
+                    }
                     OutputBufferHelpers.CopyStringToBuffer(mtName, count, pNeeded, methodTableName.ToString());
                 }
             }
@@ -2985,18 +2999,41 @@ int ISOSDacInterface.GetMethodTableName(ClrDataAddress mt, uint count, char* mtN
 #if DEBUG
         if (_legacyImpl is not null)
         {
-            char[] mtNameLocal = new char[count];
+            char[] mtNameLocal = new char[counttest];
             uint neededLocal;
             int hrLocal;
             fixed (char* ptr = mtNameLocal)
             {
-                hrLocal = _legacyImpl.GetMethodTableName(mt, count, ptr, &neededLocal);
+                hrLocal = _legacyImpl.GetMethodTableName(mt, counttest, ptr, &neededLocal);
             }
             Debug.ValidateHResult(hr, hrLocal);
             if (hr == HResults.S_OK)
             {
-                Debug.Assert(pNeeded == null || *pNeeded == neededLocal);
-                Debug.Assert(mtName == null || new ReadOnlySpan<char>(mtNameLocal, 0, (int)neededLocal - 1).SequenceEqual(new string(mtName)));
+                int maxComparableLength = 4095;
+                ReadOnlySpan<char> localComparableSpan = mtNameLocal.AsSpan(0, maxComparableLength);
+                int localNameLength = localComparableSpan.IndexOf('\0');
+                if (localNameLength < 0)
+                {
+                    localNameLength = maxComparableLength;
+                }
+
+                int nameLength = 0;
+                if (mtName is not null)
+                {
+                    ReadOnlySpan<char> comparableSpan = mtNametest.AsSpan(0, maxComparableLength);
+                    nameLength = comparableSpan.IndexOf('\0');
+                    if (nameLength < 0)
+                    {
+                        nameLength = maxComparableLength;
+                    }
+                }
+
+                if (!(pNeeded is null || *pNeeded == neededLocal))
+                {
+                    string localNameString = new(mtNameLocal, 0, localNameLength);
+                    string nameString = mtNametest is null ? string.Empty : new(mtNametest, 0, nameLength);
+                    Debug.Fail($"local name = {localNameString}, name = {nameString}, neededlocal = {neededLocal}, pneeded = {(pNeeded == null ? "null" : *pNeeded)}");
+                }
             }
         }
 #endif