diff --git a/pymupdf4llm/pymupdf4llm/__init__.py b/pymupdf4llm/pymupdf4llm/__init__.py
index 0d583f19..981f662e 100644
--- a/pymupdf4llm/pymupdf4llm/__init__.py
+++ b/pymupdf4llm/pymupdf4llm/__init__.py
@@ -1,6 +1,6 @@
 from .helpers.pymupdf_rag import IdentifyHeaders, to_markdown
 
-__version__ = "0.0.11"
+__version__ = "0.0.12"
 version = __version__
 version_tuple = tuple(map(int, version.split(".")))
 
diff --git a/pymupdf4llm/pymupdf4llm/helpers/pymupdf_rag.py b/pymupdf4llm/pymupdf4llm/helpers/pymupdf_rag.py
index 05413d86..d283404e 100644
--- a/pymupdf4llm/pymupdf4llm/helpers/pymupdf_rag.py
+++ b/pymupdf4llm/pymupdf4llm/helpers/pymupdf_rag.py
@@ -40,14 +40,17 @@
 if fitz.pymupdf_version_tuple < (1, 24, 2):
     raise NotImplementedError("PyMuPDF version 1.24.2 or later is needed.")
 
-bullet = [
-    "- ",
-    "* ",
-    chr(0xF0A7),
-    chr(0xF0B7),
-    chr(0xB7),
-    chr(8226),
-] + list(map(chr, range(9642, 9680)))
+bullet = tuple(
+    [
+        "- ",
+        "* ",
+        chr(0xF0A7),
+        chr(0xF0B7),
+        chr(0xB7),
+        chr(8226),
+    ]
+    + list(map(chr, range(9642, 9680)))
+)
 
 GRAPHICS_TEXT = "\n![](%s)\n"