Swap to building the directory tree explicitly without globs.
diff --git a/cicd/pipelines/tasks/task_updatepackages.jenkins b/cicd/pipelines/tasks/task_updatepackages.jenkins
index c0e878c..32c8b6b 100644
--- a/cicd/pipelines/tasks/task_updatepackages.jenkins
+++ b/cicd/pipelines/tasks/task_updatepackages.jenkins
@@ -56,8 +56,18 @@
                     }
 
                     dir('mendel') {
+                        bindirs = [
+                            'source',
+                            'binary-all',
+                            'binary-arm64',
+                            'binary-armhf',
+                        ]
+
+                        bindirs.each {
+                            sh "mkdir -p dists/unstable/core/" + it
+                        }
+
                         sh """
-                           mkdir -p dists/unstable/core/{source,binary-{all,arm64,armhf}}
                            find pool -name *.dsc >../sources.txt
                            find pool -name *.deb >../packages.txt
                            apt-ftparchive -c ../apt-ftparchive.conf \