diff --git a/docsrc/doxygen.config b/docsrc/doxygen.config
index 1c848a272..33cb7aa89 100644
--- a/docsrc/doxygen.config
+++ b/docsrc/doxygen.config
@@ -892,7 +892,8 @@ INPUT                  = crt/aws-crt-cpp/include \
                          secure_tunneling/include \
                          secure_tunneling/source \
                          shadow/include \
-                         shadow/source
+                         shadow/source \
+                         docsrc/mainpage.md
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses