diff --git a/config/nutgram.yaml b/config/nutgram.yaml
index d7ebcd2..db16ea2 100644
--- a/config/nutgram.yaml
+++ b/config/nutgram.yaml
@@ -1,6 +1,6 @@
 nutgram:
   # The Telegram bot token
-  token: '%env(string:NUTGRAM_TOKEN)%'
+  token: '%env(string:TELEGRAM_TOKEN)%'
 
   # If true, the webhook mode validates the incoming IP range is from a Telegram server
   safe_mode: false
diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
index 88cbdfb..39a34fc 100644
--- a/src/DependencyInjection/Configuration.php
+++ b/src/DependencyInjection/Configuration.php
@@ -14,9 +14,9 @@ public function getConfigTreeBuilder(): TreeBuilder
         $treeBuilder->getRootNode()
             ->children()
             ->scalarNode('token')->end()
-            ->booleanNode('safe_mode')->defaultFalse()->end()
+            ->booleanNode('safe_mode')->end()
             ->arrayNode('config')->end()
-            ->booleanNode('routes')->defaultTrue()->end()
+            ->booleanNode('routes')->end()
             ->end()
             ->end();