diff --git a/server/README.md b/server/README.md
index 86f3f38..d87b0fe 100644
--- a/server/README.md
+++ b/server/README.md
@@ -43,7 +43,7 @@ curl http://192.168.86.2:8765/api/info
 | `TOKEN`     | empty    | If set, requests need `X-Stem-Token` or `?token=`           |
 | `INDEX_TTL` | `30`     | Seconds between rescans of the stems folder                |
 | `QUEUE_DIR` | `/queue` | stemd's Stem Now folder (`stemd/state/queue` on unraid)    |
-| `PLEX_URL`  | empty    | Plex address, passed to the web UI via `/api/config`       |
+| `PLEX_URL`  | empty    | Plex address; the web UI reaches it through `/plex/` on this server, so HTTPS pages work |
 | `PLEX_TOKEN`| empty    | Plex token for the web UI (set `TOKEN` too)                |
 | `WEB`       | `1`      | `0` turns off the web UI                                   |