diff --git a/index.html b/index.html
index f7cfb69..ae3e673 100644
--- a/index.html
+++ b/index.html
@@ -454,7 +454,7 @@
 
           event.preventDefault();
           if (that.signaturePad?.isEmpty()) {
-            // alert("Please provide a signature first.");
+            alert("Please provide a signature first.");
           } else {
             that.loading = true;
             // var data = that.signaturePad.toDataURL(); // default: image/png