diff --git a/inst/include/common/mainpage.dox b/inst/include/common/mainpage.dox
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+/**
+ * @file mainpage.dox
+ * @mainpage C++ source code documentation
+ *
+ * This site contains C++ source code documentation for the Fisheries
+ * Integrated Modeling System (FIMS). Other forms of documentation are linked
+ * from the main documentation site at
+ * https://noaa-fims.github.io/FIMS/articles/fims-documentation.html.
+ *
+ * @copyright This file is part of the NOAA, National Marine Fisheries Service
+ * Fisheries Integrated Modeling System project. See LICENSE in the source
+ * folder for reuse information.
+ */
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