diff --git a/packages/cli/bin/hyperframes.mjs b/packages/cli/bin/hyperframes.mjs
old mode 100644
new mode 100755
diff --git a/packages/cli/src/binExecutable.test.ts b/packages/cli/src/binExecutable.test.ts
new file mode 100644
index 0000000000..ff34c09a1a
--- /dev/null
+++ b/packages/cli/src/binExecutable.test.ts
@@ -0,0 +1,11 @@
+import { statSync } from "node:fs";
+import { fileURLToPath } from "node:url";
+import { describe, expect, it } from "vitest";
+
+const binPath = fileURLToPath(new URL("../bin/hyperframes.mjs", import.meta.url));
+
+describe.skipIf(process.platform === "win32")("CLI bin", () => {
+  it("marks the package bin target as executable", () => {
+    expect(statSync(binPath).mode & 0o111).not.toBe(0);
+  });
+});