diff --git a/src/Overlay.cpp b/src/Overlay.cpp
index edd00f7..cb6ed10 100644
--- a/src/Overlay.cpp
+++ b/src/Overlay.cpp
@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+/// \file Overlay.cpp
 
 #include "Overlay.hpp"