diff --git a/firefox/10-manual.yml b/firefox/10-manual.yml
index 40a493dc..62069c90 100644
--- a/firefox/10-manual.yml
+++ b/firefox/10-manual.yml
@@ -13,8 +13,12 @@ manual:
     type: proxy
 
     address:
+      redefine: true
       default: null
+      description: HTTP proxy address
 
     port:
+      redefine: true
       default: 8080
+      description: HTTP proxy port
 ...
diff --git a/types/proxy/00-type.yml b/types/proxy/00-type.yml
index 6877fb89..bb0a8895 100644
--- a/types/proxy/00-type.yml
+++ b/types/proxy/00-type.yml
@@ -5,7 +5,6 @@ version: 1.1
 proxy:
 
   address:
-    description: Proxy address
     type: domainname
     params:
       allow_ip: true
@@ -13,7 +12,6 @@ proxy:
       variable: __.http_proxy.address
 
   port:
-    description: Proxy port
     type: port
     default:
       variable: __.http_proxy.port