diff --git a/Cargo.toml b/Cargo.toml
index 75b34ea..eba7271 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ description = "Automatic cfg for Rust compiler features"
 readme = "README.md"
 keywords = ["rustc", "build", "autoconf"]
 categories = ["development-tools::build-utils"]
-exclude = ["/.github/**"]
 rust-version = "1.0"
+include = ["Cargo.toml", "LICENSE-APACHE", "LICENSE-MIT", "README.md", "src/**/*.rs", "tests/**/*.rs"]
 
 [dependencies]
diff --git a/tests/support/wrap_ignored.rs b/tests/support/wrap_ignored.rs
new file mode 100644
index 0000000..80f2cf6
--- /dev/null
+++ b/tests/support/wrap_ignored.rs
@@ -0,0 +1,7 @@
+fn main() {
+    let mut args = std::env::args();
+    // Add our own version so we can check that the wrapper is used for that.
+    if args.any(|f| f == "--version") {
+        println!("release: 12345.6789.0");
+    }
+}
diff --git a/tests/wrap_ignored b/tests/wrap_ignored
deleted file mode 100755
index 5e577d0..0000000
--- a/tests/wrap_ignored
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/bash
-
-for arg in "$@"; do
-  case "$arg" in
-    # Add our own version so we can check that the wrapper is used for that.
-    "--version") echo "release: 12345.6789.0" ;;
-    # Read all input so the writer doesn't get EPIPE when we exit.
-    "-") read -d "" PROBE ;;
-  esac
-done
-
-exit 0
diff --git a/tests/wrappers.rs b/tests/wrappers.rs
index cacca71..0fa5c49 100644
--- a/tests/wrappers.rs
+++ b/tests/wrappers.rs
@@ -17,6 +17,8 @@ fn test_wrappers() {
         }
     }
 
+    let original_rustc = std::env::var("RUSTC").unwrap_or_else(|_| String::from("rustc"));
+
     let out = support::out_dir();
 
     // This is used as a heuristic to detect rust-lang/cargo#9601.
@@ -44,9 +46,20 @@ fn test_wrappers() {
         }
     }
 
+    // compile the wrap_ignored wrapper
+    let wrapper_output_path = format!("{}/wrap_ignored", out.display());
+    let res = std::process::Command::new(original_rustc)
+        .arg("./tests/support/wrap_ignored.rs")
+        .arg("-o")
+        .arg(&wrapper_output_path)
+        .status()
+        .unwrap();
+    assert!(res.success(), "Failed to compile wrapper");
+    println!("{wrapper_output_path}");
+
     // Finally, make sure that `RUSTC_WRAPPER` is applied outermost
     // by using something that doesn't pass through at all.
-    env::set_var("RUSTC_WRAPPER", "./tests/wrap_ignored");
+    env::set_var("RUSTC_WRAPPER", wrapper_output_path);
     env::set_var("RUSTC_WORKSPACE_WRAPPER", "/bin/false");
     let ac = autocfg::AutoCfg::with_dir(out.as_ref()).unwrap();
     assert!(ac.probe_type("mesize")); // anything goes!