diff --git a/.changeset/heavy-walls-rest.md b/.changeset/heavy-walls-rest.md
new file mode 100644
index 00000000..53f53f3d
--- /dev/null
+++ b/.changeset/heavy-walls-rest.md
@@ -0,0 +1,5 @@
+---
+'@ryanatkn/moss': patch
+---
+
+fix `gro_plugin_moss` banner
diff --git a/src/lib/gro_plugin_moss.ts b/src/lib/gro_plugin_moss.ts
index cd5f1069..9c5bc868 100644
--- a/src/lib/gro_plugin_moss.ts
+++ b/src/lib/gro_plugin_moss.ts
@@ -71,7 +71,7 @@ export const gro_plugin_moss = ({
 	const flush_gen_queue = throttle(
 		async () => {
 			const css = generate_classes_css(css_classes.get_sorted_array());
-			const contents = `/* ${banner} */\n\n${css}\n\n/* ${banner} */n`;
+			const contents = `/* ${banner} */\n\n${css}\n\n/* ${banner} */`;
 			const output = await format_file(contents, {filepath: outfile});
 			// TODO think about using gen to implement this, would have some nice benefits like automatic change detection
 			if (output === previous_output) return;