diff --git a/scripts/fba-core-regression-evidence.mjs b/scripts/fba-core-regression-evidence.mjs
index 24dddbb64..fc8283591 100644
--- a/scripts/fba-core-regression-evidence.mjs
+++ b/scripts/fba-core-regression-evidence.mjs
@@ -131,7 +131,7 @@ const base64Expression = value => '['+Buffer.from(value).toString('base64').matc
 export function buildEvidenceRemoteScript(service, sql, agent) {
   assertReadOnlySql(sql)
   if (!['order','firstleg','lastleg'].includes(service) || !/^[A-Za-z0-9_.-]{1,128}$/.test(agent)) throw Error('Invalid TEST evidence target')
-  const prefix=service.toUpperCase(),container=`firstleg-test-${service}`
+  const prefix=service.toUpperCase(),container=service==='firstleg'?'firstleg-test-business':`firstleg-test-${service}`
   const python = `import json,os,subprocess,urllib.parse,base64,re
 try:
  c=json.loads(subprocess.check_output(['docker','inspect','${container}'],text=True,stderr=subprocess.DEVNULL))[0]
diff --git a/scripts/fba-core-regression-evidence.test.mjs b/scripts/fba-core-regression-evidence.test.mjs
index 206ea130d..fd6f99385 100644
--- a/scripts/fba-core-regression-evidence.test.mjs
+++ b/scripts/fba-core-regression-evidence.test.mjs
@@ -63,8 +63,8 @@ test('Firstleg receiver evidence stays on its exact TEST container and rejects w
   const sql = buildCompletionEvidenceSql(completion())
   const decode = value => Buffer.from([...value.matchAll(/'([A-Za-z0-9+/=]{40,})'/g)].map(m => m[1]).join(''), 'base64').toString('utf8')
   const python = decode(decode(buildEvidenceRemoteScript('firstleg', sql, 'java-test-agent')))
-  assert.match(python, /docker','inspect','firstleg-test-firstleg'/)
-  assert.match(python, /get\('Name'\)!='\/firstleg-test-firstleg'/)
+  assert.match(python, /docker','inspect','firstleg-test-business'/)
+  assert.match(python, /get\('Name'\)!='\/firstleg-test-business'/)
   assert.match(python, /com\.docker\.compose\.project'\)!='firstleg-test'/)
   assert.match(python, /e\['FIRSTLEG_DB_URL'\]/)
   assert.match(python, /e\['FIRSTLEG_DB_USERNAME'\]/)