diff --git a/README.md b/README.md
index 1266ae4..c5b7aaa 100644
--- a/README.md
+++ b/README.md
@@ -7,3 +7,4 @@ Installs a global `cargo` dependency if it isn't already installed.
 - **release**: Boolean, set to true to install a release version instead of debug
 - **force-version**: Boolean, set to true to force the given version if a different version is installed
 - **binary-name**: If the binary name is different from the package name, specify it here (used for version checks)
+- **flags**: Additional flags to pass to `cargo install`, one per line