diff --git a/core/includes/install.core.inc b/core/includes/install.core.inc
index f09b187..9365698 100644
--- a/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -1505,7 +1505,9 @@ function install_load_profile(&$install_state) {
   // install_state global.
   if (!empty($install_state['profile_info']['config_install'])) {
     $install_state['config_install'] = $install_state['profile_info']['config_install'];
-    $install_state['config'] = $install_state['profile_info']['config'];
+    if (!empty($install_state['profile_info']['config'])) {
+      $install_state['config'] = $install_state['profile_info']['config'];
+    }
   }
 }