diff --git a/build-system/linux-pr-validation.yaml b/build-system/linux-pr-validation.yaml
index 0e17f423..f6e47aa1 100644
--- a/build-system/linux-pr-validation.yaml
+++ b/build-system/linux-pr-validation.yaml
@@ -21,4 +21,4 @@ jobs:
     name: Ubuntu
     vmImage: 'ubuntu-16.04'
     scriptFileName: ./build.sh
-    scriptArgs: 'all phobos customNuGetSource=$(phobosNuGet)'
\ No newline at end of file
+    scriptArgs: 'all customNuGetSource=$(phobosNuGet)'
\ No newline at end of file
diff --git a/build-system/windows-pr-validation.yaml b/build-system/windows-pr-validation.yaml
index b116e967..be97fc57 100644
--- a/build-system/windows-pr-validation.yaml
+++ b/build-system/windows-pr-validation.yaml
@@ -23,4 +23,4 @@ jobs:
     name: Windows
     vmImage: 'vs2017-win2016'
     scriptFileName: build.cmd
-    scriptArgs: 'RunTests phobos customNuGetSource=$(phobosNuGet)'
\ No newline at end of file
+    scriptArgs: 'RunTests customNuGetSource=$(phobosNuGet)'
\ No newline at end of file