diff --git a/README.md b/README.md
index f767276ed..3e9f61d2e 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,7 @@ Make sure you have Java installed with Pack200 and JavaFX 8 at least. Liberica f
 |Parameter|Description|
 |---------|-----------|
 |`-Dhmcl.self_integrity_check.disable=true`|Bypass the self integrity check when checking for update.|
+|`-Dhmcl.bmclapi.override=<version>`|Override api root of BMCLAPI download provider, defaults to `https://bmclapi2.bangbang93.com`. e.g. `https://download.mcbbs.net`.|
 |`-Dhmcl.font.override=<font family>`|Override font family.|
 |`-Dhmcl.version.override=<version>`|Override the version number.|
 |`-Dhmcl.update_source.override=<url>`|Override the update source.|