diff --git a/src/Microsoft.AspNet.Hosting/project.json b/src/Microsoft.AspNet.Hosting/project.json
index 40bc831099..4415b2a039 100644
--- a/src/Microsoft.AspNet.Hosting/project.json
+++ b/src/Microsoft.AspNet.Hosting/project.json
@@ -12,7 +12,7 @@
   },
   "frameworks": {
     "net45": {},
-    "k10": {
+    "aspnetcore50": {
       "dependencies": {
         "System.Collections": "4.0.10.0",
         "System.ComponentModel": "4.0.0.0",
diff --git a/src/Microsoft.AspNet.RequestContainer/project.json b/src/Microsoft.AspNet.RequestContainer/project.json
index 7c3a92c05e..de23d763da 100644
--- a/src/Microsoft.AspNet.RequestContainer/project.json
+++ b/src/Microsoft.AspNet.RequestContainer/project.json
@@ -7,7 +7,7 @@
   },
   "frameworks": {
     "net45": {},
-    "k10": {
+    "aspnetcore50": {
       "dependencies": {
         "System.Collections": "4.0.10.0",
         "System.ComponentModel": "4.0.0.0",
diff --git a/src/Microsoft.AspNet.TestHost/project.json b/src/Microsoft.AspNet.TestHost/project.json
index 0effba0b63..5386ddc409 100644
--- a/src/Microsoft.AspNet.TestHost/project.json
+++ b/src/Microsoft.AspNet.TestHost/project.json
@@ -6,7 +6,7 @@
   },
   "frameworks": {
     "net45": { },
-    "k10" : {
+    "aspnetcore50" : {
         "dependencies": {
             "System.Collections": "4.0.10.0",
             "System.ComponentModel": "4.0.0.0",
diff --git a/test/Microsoft.AspNet.Hosting.Tests/project.json b/test/Microsoft.AspNet.Hosting.Tests/project.json
index f106512168..d60b8d2cb8 100644
--- a/test/Microsoft.AspNet.Hosting.Tests/project.json
+++ b/test/Microsoft.AspNet.Hosting.Tests/project.json
@@ -1,4 +1,4 @@
-{
+{
   "dependencies": {
     "Microsoft.AspNet.Hosting": "",
     "Microsoft.AspNet.RequestContainer": "",
diff --git a/test/Microsoft.AspNet.TestHost.Tests/project.json b/test/Microsoft.AspNet.TestHost.Tests/project.json
index e4f8d10796..60d12ad07b 100644
--- a/test/Microsoft.AspNet.TestHost.Tests/project.json
+++ b/test/Microsoft.AspNet.TestHost.Tests/project.json
@@ -1,4 +1,4 @@
-{
+{
   "dependencies": {
     "Microsoft.AspNet.Hosting": "",
     "Microsoft.AspNet.TestHost": "",