diff --git a/index.js b/index.js
index 57d57d38..27e12c2e 100644
--- a/index.js
+++ b/index.js
@@ -26,7 +26,7 @@ let {
   asTime,
 } = serializer
 
-asNumber = asNumber.bind(serializer)
+asInteger = asInteger.bind(serializer)
 
 `