diff --git a/lib/push.rb b/lib/push.rb
index b6ef06a..03744c4 100644
--- a/lib/push.rb
+++ b/lib/push.rb
@@ -96,7 +96,7 @@ class AlgoliaSearchJekyllPush < Jekyll::Command
         exit 1
       end
 
-      unless @config['algolia']['application_id']
+      unless @config['algolia'] && @config['algolia']['application_id']
         Jekyll.logger.error 'Algolia Error: No application ID defined'
         Jekyll.logger.warn '  Please set your application id in the '\
                            '_config.yml file, like so:'