diff --git a/config/config.exs b/config/config.exs
index 38780eef7..bda92e45d 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -305,7 +305,8 @@ config :pleroma, :activitypub,
   accept_blocks: true,
   unfollow_blocked: true,
   outgoing_blocks: true,
-  follow_handshake_timeout: 500
+  follow_handshake_timeout: 500,
+  sign_object_fetches: true
 
 config :pleroma, :user, deny_follow_blocked: true
 
diff --git a/docs/config.md b/docs/config.md
index 42556a0be..02f86dc16 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -332,6 +332,7 @@ This will make Pleroma listen on `127.0.0.1` port `8080` and generate urls start
 * ``unfollow_blocked``: Whether blocks result in people getting unfollowed
 * ``outgoing_blocks``: Whether to federate blocks to other instances
 * ``deny_follow_blocked``: Whether to disallow following an account that has blocked the user in question
+* ``sign_object_fetches``: Sign object fetches with HTTP signatures
 
 ## :http_security
 * ``enabled``: Whether the managed content security policy is enabled