diff --git a/bopytex/bopytex.py b/bopytex/bopytex.py
index c863828..a9aaa46 100755
--- a/bopytex/bopytex.py
+++ b/bopytex/bopytex.py
@@ -7,6 +7,7 @@ Producing then compiling templates
 
 import logging
 import csv
+import os
 
 formatter = logging.Formatter("%(name)s :: %(levelname)s :: %(message)s")
 steam_handler = logging.StreamHandler()
@@ -32,6 +33,7 @@ def build_subject_list_from_qty(qty: int) -> list[dict]:
         subjects.append({"number": str(i + 1).zfill(digit)})
     return subjects
 
+
 def build_subjects(students_csv, quantity_subjects):
     if students_csv:
         with open(students_csv, "r") as csv_file:
@@ -41,6 +43,14 @@ def build_subjects(students_csv, quantity_subjects):
     return build_subject_list_from_qty(quantity_subjects)
 
 
+def list_tex_files_no_tpl(dir="."):
+    tex_files = []
+    for file in os.listdir(dir):
+        if file.endswith(".tex") and not file.startswith(tpl_):
+            tex_files.append(file)
+    return tex_files
+
+
 def bopytex(
     template: str,
     working_dir: str,