diff --git a/backend/scripts/p2-acceptance.mjs b/backend/scripts/p2-acceptance.mjs
index 3a7090e9..340267cf 100644
--- a/backend/scripts/p2-acceptance.mjs
+++ b/backend/scripts/p2-acceptance.mjs
@@ -779,7 +779,10 @@ async function writeInstallationFiles(ctx) {
       },
       "workspace-maintenance": {
         image: ctx.coreImageTag,
-        environment: { P2_CHILD_DEBUG: "1" },
+        environment: {
+          P2_CHILD_DEBUG: "1",
+          THT_EVIDENCE_PRIVATE_HOST_ALLOWLIST: "host.docker.internal",
+        },
         extra_hosts: ["host.docker.internal:host-gateway"],
       },
       qdrant: {