diff --git a/roles/matrix-synapse/tasks/synapse/setup_install.yml b/roles/matrix-synapse/tasks/synapse/setup_install.yml
index 3f7613271..3a980fa88 100644
--- a/roles/matrix-synapse/tasks/synapse/setup_install.yml
+++ b/roles/matrix-synapse/tasks/synapse/setup_install.yml
@@ -137,12 +137,10 @@
         [
           {
             "module": "s3_storage_provider.S3StorageProviderBackend",
-            "config":{
-              "store_local": {{ matrix_synapse_s3_media_store_on_s3 }},
-              "store_remote": {{ matrix_synapse_s3_media_store_on_local_filesystem }},
-              "store_synchronous": {{ matrix_synapse_media_storage_provider_s3_store_synchronous }},
-              "config": {{ matrix_synapse_media_storage_provider_s3_config }}
-            }
+            "store_local": matrix_synapse_s3_media_store_on_s3,
+            "store_remote": matrix_synapse_s3_media_store_on_local_filesystem,
+            "store_synchronous": matrix_synapse_media_storage_provider_s3_store_synchronous,
+            "config": matrix_synapse_media_storage_provider_s3_config
           }
         ]
       }}