diff --git a/config.sample.json b/config.sample.json
index 7dd6d250d2..e0c7375c5d 100644
--- a/config.sample.json
+++ b/config.sample.json
@@ -46,6 +46,7 @@
     },
     "element_call": {
         "url": "https://call.element.io",
+        "participant_limit": 8,
         "brand": "Element Call"
     },
     "map_style_url": "https://api.maptiler.com/maps/streets/style.json?key=fU3vlMsMn4Jb6dnEIFsx"
diff --git a/docs/config.md b/docs/config.md
index 5b33396f34..7f091529d1 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -323,6 +323,8 @@ The VoIP and Jitsi options are:
       and may be removed at any time without notice. Defaults to `https://call.element.io`.
    - `use_exclusively`: A boolean specifying whether Element Call should be used exclusively as the only VoIP stack in
       the app, removing the ability to start legacy 1:1 calls or Jitsi calls. Defaults to `false`.
+   - `participant_limit`: The maximum number of users who can join a call; if
+     this number is exceeded, the user will not be able to join a given call.
    - `brand`: Optional name for the app. Defaults to `Element Call`. This is
      used throughout the application in various strings/locations.