diff --git a/Build/build.ps1 b/Build/build.ps1
index a205000d..0e859534 100644
--- a/Build/build.ps1
+++ b/Build/build.ps1
@@ -18,8 +18,8 @@
   $workingDir = "$baseDir\Working"
   $builds = @(
     @{Name = "Newtonsoft.Json"; TestsName = "Newtonsoft.Json.Tests"; Constants=""; FinalDir="Net45"; NuGetDir = "net45"; Framework="net-4.0"; Sign=$true},
-    @{Name = "Newtonsoft.Json.Portable"; TestsName = "Newtonsoft.Json.Tests.Portable"; Constants="PORTABLE"; FinalDir="Portable"; NuGetDir = "portable-net45+wp80+win8+wpa81"; Framework="net-4.0"; Sign=$true},
-    @{Name = "Newtonsoft.Json.Portable40"; TestsName = "Newtonsoft.Json.Tests.Portable40"; Constants="PORTABLE40"; FinalDir="Portable40"; NuGetDir = "portable-net40+sl5+wp80+win8+wpa81"; Framework="net-4.0"; Sign=$true},
+    @{Name = "Newtonsoft.Json.Portable"; TestsName = "Newtonsoft.Json.Tests.Portable"; Constants="PORTABLE"; FinalDir="Portable"; NuGetDir = "portable-net45+wp80+win8+wpa81+aspnetcore50"; Framework="net-4.0"; Sign=$true},
+    @{Name = "Newtonsoft.Json.Portable40"; TestsName = "Newtonsoft.Json.Tests.Portable40"; Constants="PORTABLE40"; FinalDir="Portable40"; NuGetDir = "portable-net40+sl5+wp80+win8+wpa81+xamarinios10"; Framework="net-4.0"; Sign=$true},
     @{Name = "Newtonsoft.Json.WinRT"; TestsName = $null; Constants="NETFX_CORE"; FinalDir="WinRT"; NuGetDir = "netcore45"; Framework="net-4.5"; Sign=$true},
     @{Name = "Newtonsoft.Json.Net40"; TestsName = "Newtonsoft.Json.Tests.Net40"; Constants="NET40"; FinalDir="Net40"; NuGetDir = "net40"; Framework="net-4.0"; Sign=$true},
     @{Name = "Newtonsoft.Json.Net35"; TestsName = "Newtonsoft.Json.Tests.Net35"; Constants="NET35"; FinalDir="Net35"; NuGetDir = "net35"; Framework="net-2.0"; Sign=$true},