diff --git a/config/build.yml b/config/build.yml
index f1587a1ac..6a1de41d6 100644
--- a/config/build.yml
+++ b/config/build.yml
@@ -54,13 +54,16 @@ deploy:
   exclude_additions_file: ${repo.root}/blt/deploy-exclude-additions.txt
   gitignore_file: ${blt.root}/scripts/blt/deploy/.gitignore
 
-# File and Directory locations.
+# Drupal docroot.
 docroot: ${repo.root}/docroot
 
-# Drupal Account Credentials. These are used for installing Drupal.
+# Settings for installing Drupal.
 drupal:
-  #account.name: admin
-  account.mail: no-reply@example.com
+  account:
+    # Admin account name and password will be randomly generated unless set here.
+    #name: admin
+    #pass:
+    mail: no-reply@example.com
   site.mail: ${drupal.account.mail}
   locale: en
   local_settings_file: ${docroot}/sites/${site}/settings/local.settings.php
diff --git a/src/Robo/Commands/Drupal/InstallCommand.php b/src/Robo/Commands/Drupal/InstallCommand.php
index 17593c54e..e970c852c 100644
--- a/src/Robo/Commands/Drupal/InstallCommand.php
+++ b/src/Robo/Commands/Drupal/InstallCommand.php
@@ -120,6 +120,11 @@ function ($string) {
       ->verbose(TRUE)
       ->printOutput(TRUE);
 
+    // Allow installs to define a custom user 1 password.
+    if ($this->getConfigValue('drupal.account.pass') !== NULL) {
+      $task->option('account-pass', $this->getConfigValue('drupal.account.pass'));
+    }
+
     // Install site from existing config if supported.
     $strategy = $this->getConfigValue('cm.strategy');
     $install_from_config = $this->getConfigValue('cm.core.install_from_config');