diff --git a/.gitignore b/.gitignore
index b637372..3e1246f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,3 +46,5 @@ src/cocoindex_code/_version.py
 
 # CocoIndex
 .cocoindex_code/
+# CocoIndex Code (ccc)
+/.cocoindex_code/
diff --git a/src/cocoindex_code/cli.py b/src/cocoindex_code/cli.py
index cea64b6..76f0914 100644
--- a/src/cocoindex_code/cli.py
+++ b/src/cocoindex_code/cli.py
@@ -160,7 +160,7 @@ def _on_progress(progress: IndexingProgress) -> None:
         raise _typer.Exit(code=1)
 
 
-_GITIGNORE_COMMENT = "# cocoindex-code"
+_GITIGNORE_COMMENT = "# CocoIndex Code (ccc)"
 _GITIGNORE_ENTRY = "/.cocoindex_code/"
 
 
diff --git a/tests/test_cli_helpers.py b/tests/test_cli_helpers.py
index b16e9ab..1e5187b 100644
--- a/tests/test_cli_helpers.py
+++ b/tests/test_cli_helpers.py
@@ -81,7 +81,7 @@ def test_add_to_gitignore_creates_file(tmp_path: Path) -> None:
     gitignore = tmp_path / ".gitignore"
     assert gitignore.is_file()
     content = gitignore.read_text()
-    assert "# cocoindex-code" in content
+    assert "# CocoIndex Code (ccc)" in content
     assert "/.cocoindex_code/" in content
 
 
@@ -111,11 +111,11 @@ def test_add_to_gitignore_skips_when_no_git(tmp_path: Path) -> None:
 
 def test_remove_from_gitignore(tmp_path: Path) -> None:
     gitignore = tmp_path / ".gitignore"
-    gitignore.write_text("*.pyc\n# cocoindex-code\n/.cocoindex_code/\n__pycache__/\n")
+    gitignore.write_text("*.pyc\n# CocoIndex Code (ccc)\n/.cocoindex_code/\n__pycache__/\n")
     remove_from_gitignore(tmp_path)
     content = gitignore.read_text()
     assert "/.cocoindex_code/" not in content
-    assert "# cocoindex-code" not in content
+    assert "# CocoIndex Code (ccc)" not in content
     assert "*.pyc" in content
     assert "__pycache__/" in content