diff --git a/build/jenkins/zip b/build/jenkins/zip
index b3c27a5..2488631 100644
--- a/build/jenkins/zip
+++ b/build/jenkins/zip
@@ -128,14 +128,28 @@ pipeline {
                                 exit 1
                             }
 
-                            # Output the final zip filename
-                            Write-Output $zipFilename
+                            # This is the critical fix - we need to make sure this is the last thing output
+                            # And ensure it's on its own line with no other text
+                            Write-Host "ZIPFILENAME=$zipFilename"
                             exit 0
                         '''
 
-                        // Trim the output and set the environment variable
-                        env.CREATED_ZIP_FILENAME = zipFilenameOutput.trim()
-                        echo "Zip filename: ${env.CREATED_ZIP_FILENAME}"
+                        // Extract the zip filename from the PowerShell output by looking for "ZIPFILENAME=" prefix
+                        def outputLines = zipFilenameOutput.split('\n')
+                        def zipFilename = null
+                        for (line in outputLines) {
+                            if (line.trim().startsWith("ZIPFILENAME=")) {
+                                zipFilename = line.trim() - "ZIPFILENAME="
+                                break
+                            }
+                        }
+
+                        if (zipFilename) {
+                            env.CREATED_ZIP_FILENAME = zipFilename.trim()
+                            echo "Found zip filename: ${env.CREATED_ZIP_FILENAME}"
+                        } else {
+                            error "Failed to extract zip filename from PowerShell output. Check PowerShell script."
+                        }
                     }
                 }
             }