diff --git a/scripts/doc_parsing_utils.py b/scripts/doc_parsing_utils.py
index fae91fd9c3..51aaba8e3d 100644
--- a/scripts/doc_parsing_utils.py
+++ b/scripts/doc_parsing_utils.py
@@ -221,7 +221,9 @@ def replace_header_permalinks(
 
     if len(header_permalinks) != len(original_header_permalinks):
         raise ValueError(
-            "Number of headers with permalinks does not match the number in the original document"
+            "Number of headers with permalinks does not match the number in the "
+            "original document "
+            f"({len(header_permalinks)} vs {len(original_header_permalinks)})"
         )
 
     for header_info, original_header_info in zip(