diff --git a/core/core.services.yml b/core/core.services.yml
index cd8e8b5df2..e64c39e96a 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -1685,6 +1685,8 @@ services:
   file.mime_type.guesser:
     class: Drupal\Core\File\MimeType\MimeTypeGuesser
     arguments: ['@stream_wrapper_manager']
+    tags:
+      - { name: service_collector, tag: mime_type_guesser, call: addMimeTypeGuesser }
     lazy: true
   file.mime_type.guesser.extension:
     class: Drupal\Core\File\MimeType\ExtensionMimeTypeGuesser