diff --git a/src/index.js b/src/index.js
index <HASH>..<HASH> 100644
--- a/src/index.js
+++ b/src/index.js
@@ -16,6 +16,7 @@ export type DotModel = {
   uvCoordinates: number[],
   normalCoordinates: number[],
   numVerticesPerFace: number,
+  numCoordinatesPerVertex: number,
 };
 
 function parseIndices(streamReader: StreamReader): number[] {
Fix the exported `dotModel` flow type