diff --git a/test/Microsoft.AspNetCore.Cryptography.Internal.Test/project.json b/test/Microsoft.AspNetCore.Cryptography.Internal.Test/project.json
index c59d052b87..308877a873 100644
--- a/test/Microsoft.AspNetCore.Cryptography.Internal.Test/project.json
+++ b/test/Microsoft.AspNetCore.Cryptography.Internal.Test/project.json
@@ -16,7 +16,7 @@
       },
       "imports": "portable-net451+win8"
     },
-    "dnx451": {
+    "net451": {
       "dependencies": {
         "xunit.runner.console": "2.1.0"
       },
diff --git a/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/project.json b/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/project.json
index 4890f97d94..4263161dd4 100644
--- a/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/project.json
+++ b/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/project.json
@@ -14,7 +14,7 @@
       },
       "imports": "portable-net451+win8"
     },
-    "dnx451": {
+    "net451": {
       "dependencies": {
         "xunit.runner.console": "2.1.0"
       },
diff --git a/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/project.json b/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/project.json
index 19a40be6b1..0c2f5f6377 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/project.json
+++ b/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/project.json
@@ -14,7 +14,7 @@
       },
       "imports": "portable-net451+win8"
     },
-    "dnx451": {
+    "net451": {
       "dependencies": {
         "Moq": "4.2.1312.1622",
         "xunit.runner.console": "2.1.0"
diff --git a/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/project.json b/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/project.json
index 9e9837614a..f892ec3110 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/project.json
+++ b/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/project.json
@@ -18,7 +18,7 @@
       },
       "imports": "portable-net451+win8"
     },
-    "dnx451": {
+    "net451": {
       "dependencies": {
         "Moq": "4.2.1312.1622",
         "xunit.runner.console": "2.1.0"
diff --git a/test/Microsoft.AspNetCore.DataProtection.Test.Shared/project.json b/test/Microsoft.AspNetCore.DataProtection.Test.Shared/project.json
index 480e2a26fe..69ab8c7d84 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Test.Shared/project.json
+++ b/test/Microsoft.AspNetCore.DataProtection.Test.Shared/project.json
@@ -7,7 +7,7 @@
       },
       "imports": "portable-net451+win8"
     },
-    "dnx451": {}
+    "net451": {}
   },
   "shared": "**/*.cs"
 }
\ No newline at end of file
diff --git a/test/Microsoft.AspNetCore.DataProtection.Test/AnonymousImpersonation.cs b/test/Microsoft.AspNetCore.DataProtection.Test/AnonymousImpersonation.cs
index 25d983c6fd..f9b4ddde0e 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Test/AnonymousImpersonation.cs
+++ b/test/Microsoft.AspNetCore.DataProtection.Test/AnonymousImpersonation.cs
@@ -1,7 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
-#if DNX451
+#if NET451
 using System;
 using System.Runtime.ConstrainedExecution;
 using System.Runtime.InteropServices;
diff --git a/test/Microsoft.AspNetCore.DataProtection.Test/project.json b/test/Microsoft.AspNetCore.DataProtection.Test/project.json
index 3bb294137b..5622521c2d 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Test/project.json
+++ b/test/Microsoft.AspNetCore.DataProtection.Test/project.json
@@ -18,7 +18,7 @@
       },
       "imports": "portable-net451+win8"
     },
-    "dnx451": {
+    "net451": {
       "dependencies": {
         "Moq": "4.2.1312.1622",
         "xunit.runner.console": "2.1.0"