diff --git a/changelog.d/3114.bugfix.rst b/changelog.d/3114.bugfix.rst
new file mode 100644
index 000000000..d1e6e1ffc
--- /dev/null
+++ b/changelog.d/3114.bugfix.rst
@@ -0,0 +1 @@
+Fix generation of `repos.json` file in backup process.
\ No newline at end of file
diff --git a/redbot/core/utils/__init__.py b/redbot/core/utils/__init__.py
index 9fcf37bcc..cb21c4355 100644
--- a/redbot/core/utils/__init__.py
+++ b/redbot/core/utils/__init__.py
@@ -428,7 +428,7 @@ async def create_backup(dest: Path = Path.home()) -> Optional[Path]:
     repo_mgr = RepoManager()
     await repo_mgr.initialize()
     repo_output = []
-    for _, repo in repo_mgr._repos:
+    for repo in repo_mgr.repos:
         repo_output.append({"url": repo.url, "name": repo.name, "branch": repo.branch})
     repos_file = data_path / "cogs" / "RepoManager" / "repos.json"
     with repos_file.open("w") as fs: