diff --git a/src/apps.js b/src/apps.js
index 01f38a0b8..6e5249947 100644
--- a/src/apps.js
+++ b/src/apps.js
@@ -536,10 +536,9 @@ async function checkStorage(app, volumeId, prefix) {
     return null;
 }
 
-function getDuplicateErrorDetails(errorMessage, locations, domainObjectMap, portBindings) {
+function getDuplicateErrorDetails(errorMessage, locations, portBindings) {
     assert.strictEqual(typeof errorMessage, 'string');
     assert(Array.isArray(locations));
-    assert.strictEqual(typeof domainObjectMap, 'object');
     assert.strictEqual(typeof portBindings, 'object');
 
     const match = errorMessage.match(/ER_DUP_ENTRY: Duplicate entry '(.*)' for key '(.*)'/);
@@ -1418,7 +1417,7 @@ async function install(data, auditSource) {
     };
 
     const [addError] = await safe(add(appId, appStoreId, manifest, subdomain, domain, translatePortBindings(portBindings, manifest), app));
-    if (addError && addError.reason === BoxError.ALREADY_EXISTS) throw getDuplicateErrorDetails(addError.message, locations, domainObjectMap, portBindings);
+    if (addError && addError.reason === BoxError.ALREADY_EXISTS) throw getDuplicateErrorDetails(addError.message, locations, portBindings);
     if (addError) throw addError;
 
     await purchaseApp({ appId, appstoreId: appStoreId, manifestId: manifest.id || 'customapp' });
@@ -1861,7 +1860,7 @@ async function setLocation(app, data, auditSource) {
         values
     };
     let [taskError, taskId] = await safe(addTask(appId, exports.ISTATE_PENDING_LOCATION_CHANGE, task, auditSource));
-    if (taskError && taskError.reason === BoxError.ALREADY_EXISTS) taskError = getDuplicateErrorDetails(taskError.message, locations, domainObjectMap, data.portBindings);
+    if (taskError && taskError.reason === BoxError.ALREADY_EXISTS) taskError = getDuplicateErrorDetails(taskError.message, locations, data.portBindings);
     if (taskError) throw taskError;
 
     values.fqdn = dns.fqdn(values.subdomain, values.domain);
@@ -2324,7 +2323,7 @@ async function clone(app, data, user, auditSource) {
     };
 
     const [addError] = await safe(add(newAppId, appStoreId, manifest, subdomain, domain, translatePortBindings(portBindings, manifest), obj));
-    if (addError && addError.reason === BoxError.ALREADY_EXISTS) throw getDuplicateErrorDetails(addError.message, locations, domainObjectMap, portBindings);
+    if (addError && addError.reason === BoxError.ALREADY_EXISTS) throw getDuplicateErrorDetails(addError.message, locations, portBindings);
     if (addError) throw addError;
 
     await purchaseApp({ appId: newAppId, appstoreId: app.appStoreId, manifestId: manifest.id || 'customapp' });