diff --git a/samples/HttpOverridesSample/project.json b/samples/HttpOverridesSample/project.json
index 6f7515973c..21d4956fae 100644
--- a/samples/HttpOverridesSample/project.json
+++ b/samples/HttpOverridesSample/project.json
@@ -6,7 +6,8 @@
   "dependencies": {
     "Microsoft.AspNetCore.HttpOverrides": "1.0.0-*",
     "Microsoft.AspNetCore.IISPlatformHandler": "1.0.0-*",
-    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-*"
+    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*"
   },
   "commands": {
     "web": "HttpOverridesSample"
diff --git a/samples/ResponseBufferingSample/project.json b/samples/ResponseBufferingSample/project.json
index 3c5ff7f44f..ec19f8549d 100644
--- a/samples/ResponseBufferingSample/project.json
+++ b/samples/ResponseBufferingSample/project.json
@@ -3,7 +3,8 @@
   "dependencies": {
     "Microsoft.AspNetCore.Buffering": "0.1.0-*",
     "Microsoft.AspNetCore.IISPlatformHandler": "1.0.0-*",
-    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-*"
+    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*"
   },
   "compilationOptions": {
     "emitEntryPoint": true
diff --git a/test/Microsoft.AspNetCore.Buffering.Tests/project.json b/test/Microsoft.AspNetCore.Buffering.Tests/project.json
index 64d93344ae..ad1b716655 100644
--- a/test/Microsoft.AspNetCore.Buffering.Tests/project.json
+++ b/test/Microsoft.AspNetCore.Buffering.Tests/project.json
@@ -6,6 +6,7 @@
   "dependencies": {
     "Microsoft.AspNetCore.Buffering": "0.1.0-*",
     "Microsoft.AspNetCore.TestHost": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*",
     "xunit": "2.1.0"
   },
   "frameworks": {
@@ -21,7 +22,8 @@
     "dnxcore50": {
       "dependencies": {
         "xunit.runner.aspnet": "2.0.0-aspnet-*"
-      }
+      },
+      "imports": "portable-net451+win8"
     }
   },
   "testRunner": "xunit",
diff --git a/test/Microsoft.AspNetCore.HttpOverrides.Tests/project.json b/test/Microsoft.AspNetCore.HttpOverrides.Tests/project.json
index 2729c1bed4..a407964d8e 100644
--- a/test/Microsoft.AspNetCore.HttpOverrides.Tests/project.json
+++ b/test/Microsoft.AspNetCore.HttpOverrides.Tests/project.json
@@ -7,6 +7,7 @@
     "Microsoft.AspNetCore.HttpOverrides": "1.0.0-*",
     "Microsoft.AspNetCore.TestHost": "1.0.0-*",
     "Microsoft.Extensions.Logging.Testing": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*",
     "xunit": "2.1.0"
   },
   "frameworks": {
@@ -22,7 +23,8 @@
     "dnxcore50": {
       "dependencies": {
         "xunit.runner.aspnet": "2.0.0-aspnet-*"
-      }
+      },
+      "imports": "portable-net451+win8"
     }
   },
   "testRunner": "xunit",