diff --git a/src/util.ts b/src/util.ts
index 9ab35e2..c8a1b0a 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -96,7 +96,7 @@ export function stringifyNode(node: MfmNode): string {
 				}
 			});
 			const args = (argFields.length > 0) ? '.' + argFields.join(',') : '';
-			return `[${ node.props.name }${ args } ${ stringifyTree(node.children) }]`;
+			return `$[${ node.props.name }${ args } ${ stringifyTree(node.children) }]`;
 		}
 		case 'text': {
 			return node.props.text;