diff --git a/lib/obj2gltf.js b/lib/obj2gltf.js
index f1863bf..09b3700 100644
--- a/lib/obj2gltf.js
+++ b/lib/obj2gltf.js
@@ -36,7 +36,7 @@ module.exports = obj2gltf;
  * @param {Boolean} [options.checkTransparency=false] Do a more exhaustive check for texture transparency by looking at the alpha channel of each pixel.
  * @param {Boolean} [options.secure=false] Prevent the converter from reading image or mtl files outside of the input obj directory.
  * @param {String} [options.inputUpAxis='Y'] Up axis of the obj. Choices are 'X', 'Y', and 'Z'.
- * @param {String} [options.outputUpAxis='Z'] Up axis of the converted glTF. Choices are 'X', 'Y', and 'Z'.
+ * @param {String} [options.outputUpAxis='Y'] Up axis of the converted glTF. Choices are 'X', 'Y', and 'Z'.
  * @param {Logger} [options.logger] A callback function for handling logged messages. Defaults to console.log.
  */
 function obj2gltf(objPath, gltfPath, options) {