diff --git a/Cargo.toml b/Cargo.toml
index a58645d0b2..c1794490e1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,10 +6,8 @@ categories = ["development-tools::procedural-macro-helpers", "parser-implementat
 description = "Parser for Rust source code"
 documentation = "https://docs.rs/syn"
 edition = "2021"
-exclude = ["build.rs"]
 include = [
     "/benches/**",
-    "/build.rs",
     "/Cargo.toml",
     "/LICENSE-APACHE",
     "/LICENSE-MIT",
diff --git a/build.rs b/build.rs
index 5a9e619d67..c550dddb28 100644
--- a/build.rs
+++ b/build.rs
@@ -15,7 +15,7 @@ fn main() {
         None => return,
     };
 
-    // Note: remove exclude=["build.rs"] from Cargo.toml if adding any
+    // Note: add "/build.rs" to package.include in Cargo.toml if adding any
     // conditional compilation within the library.
     let _ = compiler.minor;