diff --git a/scripts/windows/test-integration.ps1 b/scripts/windows/test-integration.ps1
index b14d267d..aaff0aa8 100644
--- a/scripts/windows/test-integration.ps1
+++ b/scripts/windows/test-integration.ps1
@@ -164,6 +164,7 @@ function Invoke-IntegrationTests {
     Write-Info "  - APM Dependencies with real repositories"
 
     $env:APM_E2E_TESTS = "1"
+    $env:PYTHONUTF8 = "1"
 
     Write-Info "Environment:"
     Write-Host "  APM_E2E_TESTS: $env:APM_E2E_TESTS"