diff --git a/docs/configuration.md b/docs/configuration.md
index 01a6418cf..9b1aaca48 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -492,7 +492,7 @@ the model name contains `mimo`. The default API base is
 > {
 >   "providers": {
 >     "xiaomi_mimo": {
->       "apiKey": "${MIMOMIMO_API_KEY}",
+>       "apiKey": "${XIAOMIMIMO_API_KEY}",
 >       "apiBase": "https://token-plan-sgp.xiaomimimo.com/v1"
 >     }
 >   },