diff --git a/opentype/opentype.d.ts b/opentype/opentype.d.ts
index 4e98b12ece..fec42369a1 100644
--- a/opentype/opentype.d.ts
+++ b/opentype/opentype.d.ts
@@ -242,3 +242,7 @@ declare namespace opentypejs {
 }
 
 declare var opentype: typeof opentypejs;
+
+declare module "opentype.js" {
+    export = opentype;
+}