diff --git a/packages/slate-dom/src/index.ts b/packages/slate-dom/src/index.ts
index 1b3e2ceeed..4742d7bc4d 100644
--- a/packages/slate-dom/src/index.ts
+++ b/packages/slate-dom/src/index.ts
@@ -78,6 +78,7 @@ export {
   ELEMENT_TO_NODE,
   IS_COMPOSING,
   IS_FOCUSED,
+  IS_NODE_MAP_DIRTY,
   IS_READ_ONLY,
   MARK_PLACEHOLDER_SYMBOL,
   NODE_TO_ELEMENT,