diff --git a/InvokePesterStub.ps1 b/InvokePesterStub.ps1
index 8f7eb94fd5..6fc1e799f9 100755
--- a/InvokePesterStub.ps1
+++ b/InvokePesterStub.ps1
@@ -130,7 +130,6 @@ if ($All) {
         if ($OutputPath) {
             $configuration.Add('TestResult', @{
                 Enabled = $true
-                OutputFormat = "NUnit2.5"
                 OutputPath = $OutputPath
             })
         }
@@ -158,7 +157,6 @@ elseif (($LineNumber -match '\d+') -and ($pesterModule.Version -ge '4.6.0')) {
         if ($OutputPath) {
             $configuration.Add('TestResult', @{
                 Enabled = $true
-                OutputFormat = "NUnit2.5"
                 OutputPath = $OutputPath
             })
         }