diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index 676a538001dcc81131d93b1e5d46e4531cfc748a..88c96be62573d0ff818d3392bcbb3c5ec5f742fe 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -19,9 +19,9 @@ services:
         arguments:
             - "%irstea_file_upload.entity%"
         calls:
-            - [ setFilesystem, [ @irstea_file_upload.filesystem ] ]
-            - [ setLogger, [ @logger ] ]
-            - [ setEventDispatcher, [ @event_dispatcher ] ]
+            - [ setFilesystem, [ "@irstea_file_upload.filesystem" ] ]
+            - [ setLogger, [ "@logger" ] ]
+            - [ setEventDispatcher, [ "@event_dispatcher" ] ]
         tags:
             - { name: monolog.logger, channel: irstea_file_upload }