diff --git a/samples/ErrorPageSample/project.json b/samples/ErrorPageSample/project.json
index 89d135ab89..ebb4b10dcf 100644
--- a/samples/ErrorPageSample/project.json
+++ b/samples/ErrorPageSample/project.json
@@ -10,7 +10,7 @@
   "commands": { "web": "Microsoft.AspNet.Hosting server=Microsoft.AspNet.Server.WebListener server.urls=http://localhost:5001" },
   "frameworks": {
     "net45": {},
-    "k10": {
+    "aspnetcore50": {
       "dependencies": {
         "System.Collections": "4.0.10.0",
         "System.Console": "4.0.0.0",
diff --git a/samples/WelcomePageSample/project.json b/samples/WelcomePageSample/project.json
index 10ad75fb8a..76b587c53b 100644
--- a/samples/WelcomePageSample/project.json
+++ b/samples/WelcomePageSample/project.json
@@ -10,7 +10,7 @@
   "commands": { "web": "Microsoft.AspNet.Hosting server=Microsoft.AspNet.Server.WebListener server.urls=http://localhost:5001" },
   "frameworks": {
     "net45": { },
-    "k10": {
+    "aspnetcore50": {
       "dependencies": {
         "System.Collections": "4.0.10.0",
         "System.Console": "4.0.0.0",
diff --git a/src/Microsoft.AspNet.Diagnostics/project.json b/src/Microsoft.AspNet.Diagnostics/project.json
index 1765cdc3c2..b2ea01be14 100644
--- a/src/Microsoft.AspNet.Diagnostics/project.json
+++ b/src/Microsoft.AspNet.Diagnostics/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/PageGenerator/project.json b/src/PageGenerator/project.json
index dd585fb82a..d670e80a13 100644
--- a/src/PageGenerator/project.json
+++ b/src/PageGenerator/project.json
@@ -1,4 +1,4 @@
-{
+{
     "version": "1.0.0-*",
     "dependencies": {
         "Microsoft.AspNet.Diagnostics":  "",
@@ -12,7 +12,7 @@
                 "System.Runtime":  ""
             }
         },
-        "k10" : { 
+        "aspnetcore50" : { 
             "dependencies": {
                 "System.Console": "4.0.0.0"
             }