diff --git a/vars/applyConfigPolicy.groovy b/vars/applyConfigPolicy.groovy
index 189f0f3..ee42738 100644
--- a/vars/applyConfigPolicy.groovy
+++ b/vars/applyConfigPolicy.groovy
@@ -15,6 +15,9 @@ def call(rw_limit, stages) {
                     image: 'git.pyrocufflink.net/containerimages/ansible',
                     command: 'sleep',
                     args: 'infinity',
+                    envVars: [
+                        envVar(key: 'LANG', value: 'C.UTF-8'),
+                    ],
                 )
             ]) {
                 node(POD_LABEL) {