diff --git a/form-stamp.js b/form-stamp.js
index 592e1c4..481d737 100644
--- a/form-stamp.js
+++ b/form-stamp.js
@@ -34,8 +34,19 @@ export function formStamp(element, options = {})
         clone.querySelectorAll(removeSelector).forEach(child => {
             child.onclick = removeRow(child);
         });
-        element.before(clone);
-        created++;
+        if (element.dispatchEvent(new CustomEvent(
+            'beforeStampInsert',
+            {
+                detail: {
+                    i: initialItemCount + created,
+                    node: clone
+                },
+                cancelable: true
+            }
+        ))) {
+            element.before(clone);
+            created++;
+        }
     });
     container.querySelectorAll(removeSelector).forEach(child => {
         child.onclick = removeRow(child);
diff --git a/package.json b/package.json
index a1fb509..6b5727e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@digicomp/form-stamp",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "duplicates an entry form field group",
   "main": "form-stamp.js",
   "scripts": {