diff --git a/config/packages/twig.yaml b/config/packages/twig.yaml
index 3f795d9..3e4d391 100644
--- a/config/packages/twig.yaml
+++ b/config/packages/twig.yaml
@@ -1,5 +1,7 @@
 twig:
     file_name_pattern: '*.twig'
+    globals:
+        mileage_rate: '%env(MILEAGE_RATE)%'
 
 when@test:
     twig: