diff --git a/README.md b/README.md
index 7df31df0e..893068978 100644
--- a/README.md
+++ b/README.md
@@ -401,7 +401,7 @@ uv accepts the following command-line arguments as environment variables:
   will allow pre-release versions for all dependencies.
 - `UV_SYSTEM_PYTHON`:  Equivalent to the `--system` command-line argument. If set to `true`, uv
   will use the first Python interpreter found in the system `PATH`.
-  WARNING: `UV_SYSTEM=true` is intended for use in continuous integration (CI) environments and
+  WARNING: `UV_SYSTEM_PYTHON=true` is intended for use in continuous integration (CI) environments and
   should be used with caution, as it can modify the system Python installation.
 
 In each case, the corresponding command-line argument takes precedence over an environment variable.