diff --git a/docs/run-an-instance.md b/docs/run-an-instance.md
index a440d11d..1faafb91 100644
--- a/docs/run-an-instance.md
+++ b/docs/run-an-instance.md
@@ -57,7 +57,7 @@ sudo service nscd start
 | `API_URL`             | ➖        | `https://api.cobalt.tools/` | changes url from which api server is accessible. <br> ***REQUIRED TO RUN THE API***. |
 | `API_NAME`            | `unknown` | `ams-1`                 | api server name that is shown in `/api/serverInfo`. |
 | `CORS_WILDCARD`       | `1`       | `0`                     | toggles cross-origin resource sharing. <br> `0`: disabled. `1`: enabled. |
-| `CORS_URL`            | not used  | `https://cobalt.tools/` | cross-origin resource sharing url. api will be available only from this url if `CORS_WILDCARD` is set to `0`. |
+| `CORS_URL`            | not used  | `https://cobalt.tools`  | cross-origin resource sharing url. api will be available only from this url if `CORS_WILDCARD` is set to `0`. |
 | `COOKIE_PATH`         | not used  | `/cookies.json`         | path for cookie file relative to main folder. |
 | `PROCESSING_PRIORITY` | not used  | `10`                    | changes `nice` value* for ffmpeg subprocess. available only on unix systems. |
 | `FREEBIND_CIDR`       | ➖        | `2001:db8::/32`         | IPv6 prefix used for randomly assigning addresses to cobalt requests. only supported on linux systems. see below for more info. |