diff --git a/src/activities/learn_digits/learn_digits.js b/src/activities/learn_digits/learn_digits.js
index 509fbeb155947ded6e45672a286d4a039f398878..f3c979e303740583d4a46337adb5a6ee8e615529 100644
--- a/src/activities/learn_digits/learn_digits.js
+++ b/src/activities/learn_digits/learn_digits.js
@@ -32,9 +32,10 @@ var answersArray;
 var url = ""
 
 function start(items_, operationMode_) {
-    Core.checkForVoices(items_.main);
     items = items_;
     operationMode = operationMode_;
+    if(!operationMode)
+        Core.checkForVoices(items_.main);
     numberOfLevel = items.levels.length;
     currentLevel = 0;
     initLevel();