diff --git a/composer.json b/composer.json
index 74ff5a1..06bd942 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
         }
     ],
     "require": {
-        "composer/installers": "^1.0.20",
+        "composer/installers": "dev-master#b3d1f3125a77af66d2bfd934c775150e4c9aecc3",
         "drupal-composer/drupal-scaffold": "~1",
         "cweagans/composer-patches": "~1.0",
         "drupal/core": "8.0.*",
@@ -56,8 +56,10 @@
         "installer-paths": {
             "web/core": ["type:drupal-core"],
             "web/modules/contrib/{$name}": ["type:drupal-module"],
+            "web/modules/custom/{$name}": ["type:drupal-custom-module"],
             "web/profiles/contrib/{$name}": ["type:drupal-profile"],
             "web/themes/contrib/{$name}": ["type:drupal-theme"],
+            "web/themes/custom/{$name}": ["type:drupal-custom-theme"],
             "drush/contrib/{$name}": ["type:drupal-drush"]
         }
     }