diff --git a/sys/Cargo.toml b/sys/Cargo.toml
index b14675b..04fa962 100644
--- a/sys/Cargo.toml
+++ b/sys/Cargo.toml
@@ -3,7 +3,7 @@ name    = "ffmpeg-sys"
 version = "4.0.2"
 build   = "build.rs"
 links   = "ffmpeg"
-
+readme = "README.md"
 authors = ["meh. <meh@schizofreni.co>"]
 license = "WTFPL"
 
diff --git a/sys/README.md b/sys/README.md
new file mode 100644
index 0000000..6ad0ef2
--- /dev/null
+++ b/sys/README.md
@@ -0,0 +1,19 @@
+# Rust FFI bindings for ffmpeg
+
+Low-level bindings for ffmpeg autogenerated with bindgen. This crate supports cross-compilation automatically.
+
+For higher-level library, see [ffmpeg crate](https://lib.rs/ffmpeg).
+
+## Building
+
+By default, the crate will search for ffmpeg v4 installed on the system.
+
+This crate can also download, build and statically link its own copy of ffmpeg if you enable `build` feature:
+
+```toml
+[dependencies]
+ffmpeg-sys = { version = "4", features = ["build"] }
+```
+
+See [Cargo features](https://github.com/meh/rust-ffmpeg/blob/HEAD/Cargo.toml) to control which codecs are included.
+