diff --git a/Directory.Packages.props b/Directory.Packages.props
index 7a365914..b6885e95 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -3,8 +3,8 @@
   <PropertyGroup>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
     <CentralPackageTransitivePinningEnabled>true</CentralPackageTransitivePinningEnabled>
-    <MetadataVersion>54.0.44-preview</MetadataVersion>
-    <WDKMetadataVersion>0.7.3-experimental</WDKMetadataVersion>
+    <MetadataVersion>55.0.45-preview</MetadataVersion>
+    <WDKMetadataVersion>0.9.9-experimental</WDKMetadataVersion>
     <!-- <DiaMetadataVersion>0.2.185-preview-g7e1e6a442c</DiaMetadataVersion> -->
     <ApiDocsVersion>0.1.42-alpha</ApiDocsVersion>
     <CodeAnalysisVersion>4.6.0</CodeAnalysisVersion>
diff --git a/src/Microsoft.Windows.CsWin32/Generator.Struct.cs b/src/Microsoft.Windows.CsWin32/Generator.Struct.cs
index 031b6434..af754db7 100644
--- a/src/Microsoft.Windows.CsWin32/Generator.Struct.cs
+++ b/src/Microsoft.Windows.CsWin32/Generator.Struct.cs
@@ -86,7 +86,7 @@ private StructDeclarationSyntax DeclareStruct(TypeDefinitionHandle typeDefHandle
                         //    get => (EnumType)this._fieldName;
                         //    set => this._fieldName = (UnderlyingType)value;
                         // }
-                        this.RequestInteropType(this.Reader.GetString(typeDef.Namespace), propertyType.Identifier.ValueText, context);
+                        this.RequestInteropType(this.GetNamespaceForPossiblyNestedType(typeDef), propertyType.Identifier.ValueText, context);
                         ExpressionSyntax fieldAccess = MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, ThisExpression(), IdentifierName(fieldDeclarator.Identifier));
                         property = PropertyDeclaration(propertyType.WithTrailingTrivia(Space), Identifier(fieldName).WithTrailingTrivia(LineFeed))
                             .AddModifiers(TokenWithSpace(this.Visibility))
diff --git a/src/Microsoft.Windows.CsWin32/Generator.cs b/src/Microsoft.Windows.CsWin32/Generator.cs
index 0fba37ed..47ebc3d8 100644
--- a/src/Microsoft.Windows.CsWin32/Generator.cs
+++ b/src/Microsoft.Windows.CsWin32/Generator.cs
@@ -1329,6 +1329,18 @@ private string GetNormalizedModuleName(MethodImport import)
         return moduleName;
     }
 
+    private string GetNamespaceForPossiblyNestedType(TypeDefinition nestedTypeDef)
+    {
+        if (nestedTypeDef.IsNested)
+        {
+            return this.GetNamespaceForPossiblyNestedType(this.Reader.GetTypeDefinition(nestedTypeDef.GetDeclaringType()));
+        }
+        else
+        {
+            return this.Reader.GetString(nestedTypeDef.Namespace);
+        }
+    }
+
     private ParameterListSyntax CreateParameterList(MethodDefinition methodDefinition, MethodSignature<TypeHandleInfo> signature, TypeSyntaxSettings typeSettings)
         => FixTrivia(ParameterList().AddParameters(methodDefinition.GetParameters().Select(this.Reader.GetParameter).Where(p => !p.Name.IsNil).Select(p => this.CreateParameter(signature.ParameterTypes[p.SequenceNumber - 1], p, typeSettings)).ToArray()));
 
diff --git a/test/Microsoft.Windows.CsWin32.Tests/StructTests.cs b/test/Microsoft.Windows.CsWin32.Tests/StructTests.cs
index f8f8d018..c7df4df6 100644
--- a/test/Microsoft.Windows.CsWin32.Tests/StructTests.cs
+++ b/test/Microsoft.Windows.CsWin32.Tests/StructTests.cs
@@ -177,6 +177,7 @@ public void InterestingStructs(
         "DRIVER_OBJECT", // has an inline array of delegates
         "DEVICE_RELATIONS", // ends with an inline "flexible" array
         "D3DHAL_CONTEXTCREATEDATA", // contains a field that is a pointer to a struct that is normally managed
+        "MIB_TCPTABLE", // a struct that references another struct with a nested anonymous type, that loosely references an enum in the same namespace (by way of an attribute).
         "WSD_EVENT")] // has a pointer field to a managed struct
         string name,
         bool allowMarshaling)