diff --git a/src/NetworkExtension/NECompat.cs b/src/NetworkExtension/NECompat.cs
index 0a6bbf3710..7819e89466 100644
--- a/src/NetworkExtension/NECompat.cs
+++ b/src/NetworkExtension/NECompat.cs
@@ -4,7 +4,7 @@ using Foundation;
 
 namespace NetworkExtension {
 
-#if !XAMCORE_4_0
+#if !NET
 	public partial class NEPacketTunnelNetworkSettings {
 
 		[Obsolete ("This constructor does not create a valid instance of the type.")]
diff --git a/src/networkextension.cs b/src/networkextension.cs
index a362d9b534..2268e15899 100644
--- a/src/networkextension.cs
+++ b/src/networkextension.cs
@@ -221,7 +221,7 @@ namespace NetworkExtension {
 		[Export ("isBound")]
 		bool IsBound { get; }
 
-#if !XAMCORE_4_0
+#if !NET
 		[Field ("NEAppProxyErrorDomain")]
 		NSString ErrorDomain { get; }
 #endif
@@ -561,7 +561,7 @@ namespace NetworkExtension {
 		[Export ("grade", ArgumentSemantic.Assign)]
 		NEFilterManagerGrade Grade { get; set; }
 
-#if !XAMCORE_4_0
+#if !NET
 		[Field ("NEFilterErrorDomain")]
 		NSString ErrorDomain { get; }
 #endif
@@ -1087,7 +1087,7 @@ namespace NetworkExtension {
 		NEAppRule[] CopyAppRules ();
 
 		// CopyAppRules was incorrectly bound to AppRules and it is only available on macOS
-#if XAMCORE_4_0 || MONOMAC || __MACCATALYST__
+#if NET || MONOMAC || __MACCATALYST__
 		[NoWatch, NoTV, NoiOS, Mac (10,15,4), MacCatalyst (15,0)]
 		[Export ("appRules", ArgumentSemantic.Copy)]
 		NEAppRule[] AppRules { get; set; }
@@ -1115,7 +1115,7 @@ namespace NetworkExtension {
 		[Export ("contactsDomains", ArgumentSemantic.Copy)]
 		string[] ContactsDomains { get; set; }
 
-#if !XAMCORE_4_0
+#if !NET
 		[Field ("NETunnelProviderErrorDomain")]
 		NSString ErrorDomain { get; }
 #endif
@@ -1183,7 +1183,7 @@ namespace NetworkExtension {
 		[Export ("setAuthorization:")]
 		void _SetAuthorization (IntPtr auth);
 
-#if !XAMCORE_4_0
+#if !NET
 		[Field ("NEVPNErrorDomain")]
 		NSString ErrorDomain { get; }
 #endif
@@ -1707,7 +1707,7 @@ namespace NetworkExtension {
 		[Export ("socketFamily")]
 		int SocketFamily {
 			get;
-#if !XAMCORE_4_0
+#if !NET
 			[NotImplemented] set;
 #endif
 		}
@@ -1715,7 +1715,7 @@ namespace NetworkExtension {
 		[Export ("socketType")]
 		int SocketType {
 			get;
-#if !XAMCORE_4_0
+#if !NET
 			[NotImplemented] set;
 #endif
 		}
@@ -1723,7 +1723,7 @@ namespace NetworkExtension {
 		[Export ("socketProtocol")]
 		int SocketProtocol {
 			get;
-#if !XAMCORE_4_0
+#if !NET
 			[NotImplemented] set;
 #endif
 		}
diff --git a/tests/monotouch-test/NetworkExtension/VpnManagerTest.cs b/tests/monotouch-test/NetworkExtension/VpnManagerTest.cs
index 48742e4e60..98905203e8 100644
--- a/tests/monotouch-test/NetworkExtension/VpnManagerTest.cs
+++ b/tests/monotouch-test/NetworkExtension/VpnManagerTest.cs
@@ -65,7 +65,7 @@ namespace MonoTouchFixtures.NetworkExtension {
 			TestRuntime.AssertSystemVersion (ApplePlatform.iOS, 8, 0, throwIfOtherPlatform: false);
 			TestRuntime.AssertSystemVersion (ApplePlatform.MacOSX, 10, 11, throwIfOtherPlatform: false);
 
-			Assert.That (NEVpnManager.ErrorDomain.ToString (), Is.EqualTo ("NEVPNErrorDomain"), "ErrorDomain");
+			Assert.That (NEVpnError.ConnectionFailed.GetDomain ().ToString (), Is.EqualTo ("NEVPNErrorDomain"), "ErrorDomain");
 		}
 	}
 }