diff --git a/build/docker/hub/config/dendrite-config.yaml b/build/docker/hub/config/dendrite-config.yaml
index 87dcdfe38..26dc272ab 100644
--- a/build/docker/hub/config/dendrite-config.yaml
+++ b/build/docker/hub/config/dendrite-config.yaml
@@ -109,14 +109,14 @@ database:
 listen:
     room_server: "room_server:7770"
     client_api: "client_api:7771"
-	federation_api: "federation_api:7772"
-	server_key_api: "server_key_api:7778"
+    federation_api: "federation_api:7772"
+    server_key_api: "server_key_api:7778"
     sync_api: "sync_api:7773"
     media_api: "media_api:7774"
     public_rooms_api: "public_rooms_api:7775"
     federation_sender: "federation_sender:7776"
-	edu_server: "edu_server:7777"
-	key_server: "key_server:7779"
+    edu_server: "edu_server:7777"
+    key_server: "key_server:7779"
 
 # The configuration for tracing the dendrite components.
 tracing: