diff --git a/ugj_blocks.js b/ugj_blocks.js
index d8df69b..3f3a606 100644
--- a/ugj_blocks.js
+++ b/ugj_blocks.js
@@ -1407,7 +1407,7 @@ Blockly.Blocks['ugj_face_init'] = {
 Blockly.JavaScript['ugj_face_init'] = function (block) {
   var code = [
     "const _videoEl = document.getElementById('subdisplay');",
-    `const _displaySize = { width: videoEl.width, height: videoEl.height };`,
+    `const _displaySize = { width: _videoEl.width, height: _videoEl.height };`,
     "const _stream = await navigator.mediaDevices.getUserMedia({ audio: false, video: _displaySize });",
     "_videoEl.srcObject = _stream;",
     ""
@@ -1516,7 +1516,7 @@ Blockly.Blocks['ugj_face_drawrect'] = {
 };
 Blockly.JavaScript['ugj_face_drawrect'] = function (block) {
   var code_draw = `      _faceapi.draw.drawDetections(_overlay, _resizedDetections);`;
-  if (with_landmark) { code_draw += `\n      faceapi.draw.drawFaceLandmarks(overlay, resizedDetections);`; }
+  if (with_landmark) { code_draw += `\n      _faceapi.draw.drawFaceLandmarks(_overlay, _resizedDetections);`; }
   var code = [
     `      _faceapi.matchDimensions(_overlay, _displaySize);`,
     `      const _resizedDetections = _faceapi.resizeResults(_result, _displaySize);`,