diff --git a/Jenkinsfile b/Jenkinsfile
index 657e473..4b29899 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -48,68 +48,75 @@ pipeline {
                     def result = currentBuild.currentResult ?: 'UNKNOWN'
 
                     withCredentials([string(credentialsId: 'TAIGA_TOKEN', variable: 'TAIGA_TOKEN')]) {
-                        powershell(returnStatus: true, script: """
-                            \$commitMsg = git log -1 --pretty=%B
-                            \$match = [regex]::Match(\$commitMsg, 'TG-(\\d+)')
+                        writeFile file: 'taiga-post.ps1', text: '''
+$ErrorActionPreference = "Continue"
 
-                            if (-not \$match.Success) {
-                                Write-Host "No TG-* reference found"
-                                exit 0
-                            }
+$commitMsg = git log -1 --pretty=%B
+$match = [regex]::Match($commitMsg, 'TG-(\\d+)')
 
-                            \$ref = \$match.Groups[1].Value
-                            \$headers = @{
-                                Authorization = "Bearer \$env:TAIGA_TOKEN"
-                                "Content-Type" = "application/json"
-                            }
+if (-not $match.Success) {
+    Write-Host "No TG-* reference found"
+    exit 0
+}
 
-                            \$targets = @(
-                                @{ endpoint = "userstories"; label = "User Story" },
-                                @{ endpoint = "issues"; label = "Issue" },
-                                @{ endpoint = "tasks"; label = "Task" }
-                            )
+$ref = $match.Groups[1].Value
 
-                            \$found = \$null
+$headers = @{
+    Authorization = "Bearer $env:TAIGA_TOKEN"
+    "Content-Type" = "application/json"
+}
 
-                            foreach (\$target in \$targets) {
-                                try {
-                                    \$url = "\$env:TAIGA_URL/api/v1/\$(\$target.endpoint)/by_ref?project=\$env:TAIGA_PROJECT_ID&ref=\$ref"
-                                    \$data = Invoke-RestMethod -Uri \$url -Headers \$headers -Method Get
-                                    if (\$data.id) {
-                                        \$found = @{
-                                            endpoint = \$target.endpoint
-                                            label = \$target.label
-                                            data = \$data
-                                        }
-                                        break
-                                    }
-                                } catch {
-                                    Write-Host "Taiga lookup warning: \$($_.Exception.Message)"
-                                }
-                            }
+$targets = @(
+    @{ endpoint = "userstories"; label = "User Story" },
+    @{ endpoint = "issues"; label = "Issue" },
+    @{ endpoint = "tasks"; label = "Task" }
+)
 
-                            if (-not \$found) {
-                                Write-Host "Taiga TG-\$ref not found"
-                                exit 0
-                            }
+$found = $null
 
-                            \$comment = "Jenkins Windows Qt build #$env:BUILD_NUMBER: ${result}`n$env:BUILD_URL"
+foreach ($target in $targets) {
+    try {
+        $url = "$env:TAIGA_URL/api/v1/$($target.endpoint)/by_ref?project=$env:TAIGA_PROJECT_ID&ref=$ref"
+        $data = Invoke-RestMethod -Uri $url -Headers $headers -Method Get
+        if ($data.id) {
+            $found = @{
+                endpoint = $target.endpoint
+                label = $target.label
+                data = $data
+            }
+            break
+        }
+    } catch {
+        Write-Host "Taiga lookup warning: $($_.Exception.Message)"
+    }
+}
 
-                            \$body = @{
-                                comment = \$comment
-                                version = \$found.data.version
-                            } | ConvertTo-Json
+if (-not $found) {
+    Write-Host "Taiga TG-$ref not found"
+    exit 0
+}
 
-                            try {
-                                \$url = "\$env:TAIGA_URL/api/v1/\$(\$found.endpoint)/\$(\$found.data.id)"
-                                Invoke-RestMethod -Uri \$url -Headers \$headers -Method Patch -Body \$body
-                                Write-Host "Commented Taiga TG-\$ref (\$(\$found.label))"
-                            } catch {
-                                Write-Host "Taiga comment warning: \$($_.Exception.Message)"
-                            }
+$comment = "Jenkins Windows Qt build #$env:BUILD_NUMBER: $env:BUILD_RESULT`n$env:BUILD_URL"
 
-                            exit 0
-                        """)
+$body = @{
+    comment = $comment
+    version = $found.data.version
+} | ConvertTo-Json
+
+try {
+    $url = "$env:TAIGA_URL/api/v1/$($found.endpoint)/$($found.data.id)"
+    Invoke-RestMethod -Uri $url -Headers $headers -Method Patch -Body $body
+    Write-Host "Commented Taiga TG-$ref ($($found.label))"
+} catch {
+    Write-Host "Taiga comment warning: $($_.Exception.Message)"
+}
+
+exit 0
+'''
+
+                        withEnv(["BUILD_RESULT=${result}"]) {
+                            powershell(returnStatus: true, file: 'taiga-post.ps1')
+                        }
                     }
                 }
             }