diff -u b/core/core.services.yml b/core/core.services.yml
--- b/core/core.services.yml
+++ b/core/core.services.yml
@@ -1558,6 +1558,8 @@
     arguments: ['@renderer', '@url_generator', '@theme.manager', '@date.formatter']
     tags:
       - { name: twig.extension, priority: 100 }
+    calls:
+      - [setThemeRegistry, ['@theme.registry']]
   # @todo Figure out what to do about debugging functions.
   # @see https://www.drupal.org/node/1804998
   twig.extension.debug:
@@ -1567,8 +1569,6 @@
     arguments: ['@renderer', '@url_generator', '@theme.manager', '@date.formatter']
     tags:
       - { name: twig.extension, priority: 100 }
-      calls:
-        - [setThemeRegistry, ['@theme.registry']]
   # @todo Figure out what to do about debugging functions.
   # @see https://www.drupal.org/node/1804998
   twig.extension.debug: