2 files changed, 2 insertions, 2 deletions

diff --git a/xtask/src/codegen.rs b/xtask/src/codegen.rs
index 2cf3c6fdc..518e17e38 100644
--- a/xtask/src/codegen.rs
+++ b/xtask/src/codegen.rs
@@ -62,7 +62,7 @@ pub(crate) fn ensure_file_contents(file: &Path, contents: &str) -> Result<()> {
         let _ = std::fs::create_dir_all(parent);
     }
     std::fs::write(file, contents).unwrap();
-    anyhow::bail!("some file were not up to date")
+    anyhow::bail!("some file was not up to date and has been updated, simply re-run the tests")
 }
 
 fn normalize_newlines(s: &str) -> String {
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 35cc7c108..057cd57ae 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -1,7 +1,7 @@
 //! See https://github.com/matklad/cargo-xtask/.
 //!
 //! This binary defines various auxiliary build commands, which are not
-//! expressible with just `cargo`. Notably, it provides `cargo xtask codegen`
+//! expressible with just `cargo`. Notably, it provides tests via `cargo test -p xtask`
 //! for code generation and `cargo xtask install` for installation of
 //! rust-analyzer server and client.
 //!