diff --git a/builder/builder/doctype/builder_page/builder_page.py b/builder/builder/doctype/builder_page/builder_page.py
index 5df16724..248b7b06 100644
--- a/builder/builder/doctype/builder_page/builder_page.py
+++ b/builder/builder/doctype/builder_page/builder_page.py
@@ -418,7 +418,7 @@ def get_tag(block, soup, data_key=None):
 				if data_key:
 					_key = f"{data_key}.{_key}"
 
-				item_key = f"key_{block.get('blockId')}"
+				item_key = f"key_{_key.replace('.', '__')}"
 				tag.append(f"{{% for {item_key} in {_key} %}}")
 				tag.append(get_tag(block.get("children")[0], soup, item_key))
 				tag.append("{% endfor %}")