diff --git a/tests/renderers/test_mkdocs_module_coverage.py b/tests/renderers/test_mkdocs_module_coverage.py
new file mode 100644
index 0000000..e5639ff
--- /dev/null
+++ b/tests/renderers/test_mkdocs_module_coverage.py
@@ -0,0 +1,36 @@
+from pathlib import Path
+
+from docforge.loader import GriffeLoader
+from docforge.renderers.mkdocs import MkDocsRenderer
+
+
+def test_mkdocs_emits_all_modules(tmp_path: Path) -> None:
+    loader = GriffeLoader()
+    project = loader.load_project(["docforge"])
+
+    renderer = MkDocsRenderer()
+    renderer.generate_sources(project, tmp_path)
+
+    emitted = {
+        p.relative_to(tmp_path).as_posix()
+        for p in tmp_path.rglob("*.md")
+    }
+
+    module_paths = [m.path for m in project.get_all_modules()]
+
+    expected = set()
+    for path in module_paths:
+        parts = path.split(".")
+        # treat package as index.md if any other module is nested under it
+        is_package = any(
+            other != path and other.startswith(path + ".")
+            for other in module_paths
+        )
+
+        if is_package:
+            expected.add("/".join(parts) + "/index.md")
+        else:
+            expected.add("/".join(parts) + ".md")
+
+    missing = expected - emitted
+    assert not missing, f"Missing markdown files for modules: {missing}"