diff --git a/lib/runtime/README.md b/lib/runtime/README.md
index 97fe8c372a..3e685ad92e 100644
--- a/lib/runtime/README.md
+++ b/lib/runtime/README.md
@@ -2,6 +2,9 @@ This is the `wasmtime-runtime` crate, which contains wasm runtime library
 support, supporting the wasm ABI used by [`wasmtime-environ`],
 [`wasmtime-jit`], and [`wasmtime-obj`].
 
+This crate does not make a host vs. target distinction; it is meant to be
+compiled for the target.
+
 [`wasmtime-environ`]: https://crates.io/crates/wasmtime-environ
 [`wasmtime-jit`]: https://crates.io/crates/wasmtime-jit
 [`wasmtime-obj`]: https://crates.io/crates/wasmtime-obj