diff --git a/src/coreclr/src/vm/dllimportcallback.cpp b/src/coreclr/src/vm/dllimportcallback.cpp
index 9ec4153e651fc3..be989d1f6097db 100644
--- a/src/coreclr/src/vm/dllimportcallback.cpp
+++ b/src/coreclr/src/vm/dllimportcallback.cpp
@@ -629,6 +629,9 @@ VOID UMThunkMarshInfo::SetUpForUnmanagedCallersOnly()
     CorPinvokeMap callConv = (CorPinvokeMap)0;
 
     HRESULT hr = pMD->GetCustomAttribute(WellKnownAttribute::UnmanagedCallersOnly, (const VOID **)(&pData), (ULONG *)&cData);
+    if (hr == S_FALSE)
+        hr = pMD->GetCustomAttribute(WellKnownAttribute::NativeCallableInternal, (const VOID **)(&pData), (ULONG *)&cData);
+
     IfFailThrow(hr);
 
     _ASSERTE(cData > 0);
diff --git a/src/coreclr/src/vm/method.cpp b/src/coreclr/src/vm/method.cpp
index 690051b905bf84..fb7d73f791d5b4 100644
--- a/src/coreclr/src/vm/method.cpp
+++ b/src/coreclr/src/vm/method.cpp
@@ -5429,6 +5429,15 @@ BOOL MethodDesc::HasUnmanagedCallersOnlyAttribute()
         WellKnownAttribute::UnmanagedCallersOnly,
         nullptr,
         nullptr);
+    if (hr != S_OK)
+    {
+        // See https://github.com/dotnet/runtime/issues/37622
+        hr = GetCustomAttribute(
+            WellKnownAttribute::NativeCallableInternal,
+            nullptr,
+            nullptr);
+    }
+
     return (hr == S_OK) ? TRUE : FALSE;
 }
 
diff --git a/src/coreclr/src/vm/wellknownattributes.h b/src/coreclr/src/vm/wellknownattributes.h
index be38b0be88cfe0..11911910865106 100644
--- a/src/coreclr/src/vm/wellknownattributes.h
+++ b/src/coreclr/src/vm/wellknownattributes.h
@@ -31,6 +31,7 @@ enum class WellKnownAttribute : DWORD
     PrimaryInteropAssembly,
     ManagedToNativeComInteropStub,
     UnmanagedCallersOnly,
+    NativeCallableInternal, // This is needed to support MCG scenarios
     TypeIdentifier,
     UnmanagedFunctionPointer,
     ThreadStatic,
@@ -92,6 +93,8 @@ inline const char *GetWellKnownAttributeName(WellKnownAttribute attribute)
             return "System.Runtime.InteropServices.ManagedToNativeComInteropStubAttribute";
         case WellKnownAttribute::UnmanagedCallersOnly:
             return "System.Runtime.InteropServices.UnmanagedCallersOnlyAttribute";
+        case WellKnownAttribute::NativeCallableInternal:
+            return "System.Runtime.InteropServices.NativeCallableInternalAttribute";
         case WellKnownAttribute::TypeIdentifier:
             return "System.Runtime.InteropServices.TypeIdentifierAttribute";
         case WellKnownAttribute::UnmanagedFunctionPointer: