diff --git a/lib/new-settings-loader.js b/lib/new-settings-loader.js
index 4c26db2f..8ae488f5 100644
--- a/lib/new-settings-loader.js
+++ b/lib/new-settings-loader.js
@@ -24,7 +24,9 @@ select $1, $2, $3, $4 where $1 not in (select type from user_config)`
 function saveAccounts (accountsToSave) {
   return loadAccounts()
     .then(currentAccounts => {
-      const newAccounts = _.assign(currentAccounts, accountsToSave)
+      const serviceCode = _.keys(accountsToSave)[0]
+      accountsToSave[serviceCode] = _.omitBy(_.isEmpty, accountsToSave[serviceCode])
+      const newAccounts = _.merge(currentAccounts, accountsToSave)
       return db.none(accountsSql, ['accounts', { accounts: newAccounts }, true, NEW_SETTINGS_LOADER_SCHEMA_VERSION])
     })
 }