diff --git a/openviking/parse/parsers/constants.py b/openviking/parse/parsers/constants.py
index 174df57b99..cb0bf70123 100644
--- a/openviking/parse/parsers/constants.py
+++ b/openviking/parse/parsers/constants.py
@@ -97,6 +97,7 @@
     ".py",
     ".java",
     ".cpp",
+    ".cc",
     ".c",
     ".h",
     ".hpp",
diff --git a/tests/parse/test_directory_parser_routing.py b/tests/parse/test_directory_parser_routing.py
index 622f772d71..f7ebb6e3a2 100644
--- a/tests/parse/test_directory_parser_routing.py
+++ b/tests/parse/test_directory_parser_routing.py
@@ -83,6 +83,7 @@ def tmp_all_parsers(tmp_path: Path) -> Path:
                 bundle.zip       -> ZipParser
             code/
                 app.py            -> text-fallback (is_text_file)
+                engine.cc         -> text-fallback
                 main.js           -> text-fallback
                 style.css         -> text-fallback
             config/
@@ -112,6 +113,7 @@ def tmp_all_parsers(tmp_path: Path) -> Path:
 
     (tmp_path / "code").mkdir()
     (tmp_path / "code" / "app.py").write_text("print(1)", encoding="utf-8")
+    (tmp_path / "code" / "engine.cc").write_text("int main() { return 0; }", encoding="utf-8")
     (tmp_path / "code" / "main.js").write_text("console.log(1)", encoding="utf-8")
     (tmp_path / "code" / "style.css").write_text("body{}", encoding="utf-8")
 
@@ -166,7 +168,7 @@ class TestParserSelection:
     # Extensions that are *processable* (via is_text_file) but have no
     # dedicated parser in the registry – they fall back to TextParser at
     # parse-time via ``ParserRegistry.parse``.
-    TEXT_FALLBACK_EXTENSIONS = {".py", ".js", ".css", ".yaml", ".json", ".toml"}
+    TEXT_FALLBACK_EXTENSIONS = {".py", ".cc", ".js", ".css", ".yaml", ".json", ".toml"}
 
     def test_dedicated_parsers_resolve(self, registry: ParserRegistry) -> None:
         """get_parser_for_file returns the correct class for each extension."""
diff --git a/tests/parse/test_directory_scan.py b/tests/parse/test_directory_scan.py
index cd440dca09..3ec2fc66fd 100644
--- a/tests/parse/test_directory_scan.py
+++ b/tests/parse/test_directory_scan.py
@@ -35,6 +35,7 @@ def tmp_tree(tmp_path: Path) -> Path:
 
     # text (code/config, no dedicated parser or text parser only): .py, .yaml
     (tmp_path / "main.py").write_text("print(1)", encoding="utf-8")
+    (tmp_path / "engine.cc").write_text("int main() { return 0; }", encoding="utf-8")
     (tmp_path / "config.yaml").write_text("key: value", encoding="utf-8")
 
     # unsupported: unknown extension
@@ -136,6 +137,7 @@ def test_processable_includes_code_or_config(
         result: DirectoryScanResult = scan_directory(tmp_tree, registry=registry, strict=False)
         processable_rel = [f.rel_path for f in result.processable]
         assert "main.py" in processable_rel
+        assert "engine.cc" in processable_rel
         assert "config.yaml" in processable_rel
         assert "src/app.py" in processable_rel