diff --git a/test/cli.test.ts b/test/cli.test.ts
index d76fe83..6e30c36 100644
--- a/test/cli.test.ts
+++ b/test/cli.test.ts
@@ -17,6 +17,20 @@ afterEach(async () => {
 });
 
 describe("cli", () => {
+  it("builds an importable library and an executable CLI with one shebang", async () => {
+    await execa("npm", ["run", "build"]);
+
+    const [library, cli, result] = await Promise.all([
+      readFile("dist/index.js", "utf8"),
+      readFile("dist/cli/index.js", "utf8"),
+      execa("node", ["dist/cli/index.js", "--help"]),
+    ]);
+
+    expect(library.startsWith("#!")).toBe(false);
+    expect(cli.match(/^#!/gm)).toHaveLength(1);
+    expect(result.stdout).toContain("Render Markdown documents to PDF.");
+  }, 30_000);
+
   it("renders a Markdown file to the requested PDF path", async () => {
     const workspace = await createWorkspace();
     const inputPath = join(workspace, "notes.md");
diff --git a/tsup.config.ts b/tsup.config.ts
index d9b1558..028672f 100644
--- a/tsup.config.ts
+++ b/tsup.config.ts
@@ -8,7 +8,4 @@ export default defineConfig({
   clean: true,
   splitting: false,
   target: "node20",
-  banner: {
-    js: "#!/usr/bin/env node",
-  },
 });