diff --git a/dist/worker.js b/dist/worker.js
index dd3f60b..4363c3e 100644
--- a/dist/worker.js
+++ b/dist/worker.js
@@ -12245,6 +12245,7 @@ function handleRecognize(req, res) {
         base.Init(null, lang);
         res.progress({ status: 'initialized with language' });
 
+        var options = req.options;
         for (var option in options) {
             if (options.hasOwnProperty(option)) {
                 base.SetVariable(option, options[option]);
diff --git a/src/common/worker.js b/src/common/worker.js
index ab9b1d7..b6e4a4f 100644
--- a/src/common/worker.js
+++ b/src/common/worker.js
@@ -91,6 +91,7 @@ function handleRecognize(req, res){
         base.Init(null, lang)
         res.progress({ status: 'initialized with language' })
 
+        var options = req.options;
         for (var option in options) {
             if (options.hasOwnProperty(option)) {
                 base.SetVariable(option, options[option]);