diff --git a/resources/TTSDeck.js b/resources/TTSDeck.js
index 448c378..520af3d 100644
--- a/resources/TTSDeck.js
+++ b/resources/TTSDeck.js
@@ -192,7 +192,7 @@ function run() {
 
             deck_graphics.drawImage(card_image, col * card_image.width, row * card_image.height, null);
           } catch (ex) {
-            alert('Error while processing ' + card, true);
+            alert('Error while processing ' + card + ': ' + ex, true);
           }
         }
         println("End of Row ", row);