diff --git a/src/git_bob/_ai_github_utilities.py b/src/git_bob/_ai_github_utilities.py
index 0d5296e..7710c5c 100644
--- a/src/git_bob/_ai_github_utilities.py
+++ b/src/git_bob/_ai_github_utilities.py
@@ -403,7 +403,7 @@ def solve_github_issue(repository, issue, llm_model, prompt_function, base_branc
     discussion = modify_discussion(Config.git_utilities.get_conversation_on_issue(repository, issue))
     print("Discussion:", discussion)
 
-    all_files = "* " + "\n* ".join(Config.git_utilities.list_repository_files(repository))
+    all_files = "* " + "\n* ".join(Config.git_utilities.list_repository_files(repository, branch_name=base_branch))
 
     modifications = prompt_function(f"""
 Given a list of files in the repository {repository} and a github issues description (# {issue}), determine which files need to be modified, renamed or deleted to solve the issue.
diff --git a/src/git_bob/_github_utilities.py b/src/git_bob/_github_utilities.py
index c396a40..4dbd16f 100644
--- a/src/git_bob/_github_utilities.py
+++ b/src/git_bob/_github_utilities.py
@@ -246,7 +246,7 @@ def get_issue_details(repository: str, issue: int) -> str:
     return content
 
 
-def list_repository_files(repository: str) -> list:
+def list_repository_files(repository: str, branch_name: str = "main") -> list:
     """
     List all files in a given GitHub repository.
 
@@ -257,6 +257,8 @@ def list_repository_files(repository: str) -> list:
     ----------
     repository : str
         The full name of the GitHub repository (e.g., "username/repo-name").
+    branch_name : str, optional
+        The name of the branch or tag (default is 'main').
 
     Returns
     -------
@@ -269,7 +271,7 @@ def list_repository_files(repository: str) -> list:
     repo = get_repository_handle(repository)
 
     # Get all contents of the repository
-    contents = repo.get_contents("")
+    contents = repo.get_contents("", ref=branch_name)
 
     # List to store all file paths
     all_files = []
@@ -296,7 +298,7 @@ def get_repository_file_contents(repository: str, branch_name, file_paths: list)
     repository : str
         The full name of the GitHub repository (e.g., "username/repo-name").
     branch_name : str, optional
-        The name of the branch or tag (default is 'main').
+        The name of the branch or tag.
     file_paths : list
         A list of file paths within the repository to retrieve the contents of.
 
@@ -305,7 +307,7 @@ def get_repository_file_contents(repository: str, branch_name, file_paths: list)
     dict
         A dictionary where keys are file paths and values are the contents of the files.
     """
-    Log().log(f"-> get_repository_file_contents({repository}, {file_paths})")
+    Log().log(f"-> get_repository_file_contents({repository}, {branch_name}, {file_paths})")
 
     # Dictionary to store file contents
     file_contents = {}
diff --git a/src/git_bob/_gitlab_utilities.py b/src/git_bob/_gitlab_utilities.py
index f59e914..b139567 100644
--- a/src/git_bob/_gitlab_utilities.py
+++ b/src/git_bob/_gitlab_utilities.py
@@ -186,7 +186,7 @@ def get_issue_details(repository: str, issue: int) -> str:
 
     return content
 
-def list_repository_files(repository: str):
+def list_repository_files(repository: str, branch_name: str = "main") -> list:
     """
     List all files in the specified GitLab repository branch.
 
@@ -194,20 +194,22 @@ def list_repository_files(repository: str):
     ----------
     repository : str
         The full name of the GitLab project (e.g., "username/repo-name").
+    branch_name : str, optional
+        The name of the branch or tag (default is 'main').
 
     Returns
     -------
     list
         A list of file paths in the repository.
     """
-    Log().log(f"-> list_repository_files({repository})")
+    Log().log(f"-> list_repository_files({repository}, {branch_name})")
     repo = get_repository_handle(repository)
     files = []
     path_stack = ['']
 
     while path_stack:
         path = path_stack.pop()
-        tree = repo.repository_tree(path=path)
+        tree = repo.repository_tree(path=path, ref=branch_name)
         for item in tree:
             if item['type'] == 'blob':
                 files.append(item['path'])
@@ -234,7 +236,7 @@ def get_repository_file_contents(repository:str, branch_name, file_paths: list):
     str
         The content of the file as a string.
     """
-    Log().log(f"-> get_repository_file_contents({repository}, {file_paths}, {branch_name})")
+    Log().log(f"-> get_repository_file_contents({repository}, {branch_name}, {file_paths})")
     project = get_repository_handle(repository)
 
     file_contents = {}
diff --git a/tests/test_gitlab_utilities.py b/tests/test_gitlab_utilities.py
index 872cc16..a39f28a 100644
--- a/tests/test_gitlab_utilities.py
+++ b/tests/test_gitlab_utilities.py
@@ -59,7 +59,7 @@ def test_list_repository_files():
     Config.git_server_url = "https://gitlab.com"
 
     from git_bob._gitlab_utilities import list_repository_files
-    files = list(list_repository_files("haesleinhuepf/git-bob"))
+    files = list(list_repository_files("haesleinhuepf/git-bob", branch_name="main"))
 
     assert "README.md" in files
     assert "LICENSE" in files