diff --git a/exercise/scripts/main.js b/exercise/scripts/main.js
index d144fb1..92acc49 100644
--- a/exercise/scripts/main.js
+++ b/exercise/scripts/main.js
@@ -13,6 +13,7 @@ window.addEventListener('DOMContentLoaded', function() {
       // If we haven't selected 2 cards yet, add the current card to the
       // collection of selected cards and apply the correct CSS class.
       if (selectedCards.length < 2) {
+        console.log('The number of selected cards is less than 2.')
         card.classList.add('is-selected');
         selectedCards.push(card);
       }