diff --git a/Cargo.toml b/Cargo.toml
index a7e1e5b..d0fd229 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,6 +5,7 @@ edition = "2018"
 license = "MIT OR Apache-2.0"
 description = "Types for rustdoc's json output"
 repository = "https://github.com/rust-lang/rustdoc-types"
+include = ["Cargo.toml", "CHANGELOG.md", "README.md", "LICENSE-MIT", "LICENSE-APACHE", "src/**/*.rs"]
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]