diff --git a/images/linux/scripts/helpers/Tests.Helpers.psm1 b/images/linux/scripts/helpers/Tests.Helpers.psm1
index 5689d9e54..161165c53 100644
--- a/images/linux/scripts/helpers/Tests.Helpers.psm1
+++ b/images/linux/scripts/helpers/Tests.Helpers.psm1
@@ -20,10 +20,10 @@ function Invoke-PesterTests {
     if (!(Get-Module "Pester")) {
         Import-Module Pester
     }
-    
+
     $configuration = [PesterConfiguration] @{
         Run = @{ Path = $testPath; PassThru = $true }
-        Output = @{ Verbosity = "Detailed" }
+        Output = @{ Verbosity = "Detailed"; RenderMode = "Plaintext" }
     }
     if ($TestName) {
         $configuration.Filter.FullName = $TestName
diff --git a/images/macos/helpers/Tests.Helpers.psm1 b/images/macos/helpers/Tests.Helpers.psm1
index 4eaeec3ce..528a0857e 100644
--- a/images/macos/helpers/Tests.Helpers.psm1
+++ b/images/macos/helpers/Tests.Helpers.psm1
@@ -132,7 +132,7 @@ function Invoke-PesterTests {
 
     $configuration = [PesterConfiguration] @{
         Run = @{ Path = $testPath; PassThru = $true }
-        Output = @{ Verbosity = "Detailed" }
+        Output = @{ Verbosity = "Detailed"; RenderMode = "Plaintext" }
     }
     if ($TestName) {
         $configuration.Filter.FullName = $TestName
diff --git a/images/win/scripts/ImageHelpers/TestsHelpers.ps1 b/images/win/scripts/ImageHelpers/TestsHelpers.ps1
index fcc9a6193..9e6efc43e 100644
--- a/images/win/scripts/ImageHelpers/TestsHelpers.ps1
+++ b/images/win/scripts/ImageHelpers/TestsHelpers.ps1
@@ -48,7 +48,7 @@ function Invoke-PesterTests {
 
     $configuration = [PesterConfiguration] @{
         Run = @{ Path = $testPath; PassThru = $true }
-        Output = @{ Verbosity = "Detailed" }
+        Output = @{ Verbosity = "Detailed"; RenderMode = "Plaintext"}
     }
     if ($TestName) {
         $configuration.Filter.FullName = $TestName