diff --git a/cognee/tasks/chunks/chunk_by_paragraph.py b/cognee/tasks/chunks/chunk_by_paragraph.py
index 1668276c5..f71c4372b 100644
--- a/cognee/tasks/chunks/chunk_by_paragraph.py
+++ b/cognee/tasks/chunks/chunk_by_paragraph.py
@@ -31,7 +31,7 @@ def chunk_by_paragraph(
     current_chunk = ""
     chunk_index = 0
     paragraph_ids = []
-    last_cut_type = None
+    last_cut_type = "default"
     current_chunk_size = 0
 
     for paragraph_id, sentence, sentence_size, end_type in chunk_by_sentence(
@@ -77,6 +77,9 @@ def chunk_by_paragraph(
             current_chunk_size = 0
             chunk_index += 1
 
+        if not end_type:
+            end_type = "default"
+
         last_cut_type = end_type
 
     # Yield any remaining text