diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index fbcd84ba..cbcbf7bd 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -197,6 +197,11 @@ add_docbook(dbus-tutorial SOURCE dbus-tutorial.xml FORMATS html)
 #
 # handle html index file
 #
+if(DBUS_ENABLE_DOXYGEN_DOCS)
+    set(DBUS_APIDOC_LINK "<a href=\"api/html/index.html\">libdbus API Documentation</a>")
+else()
+    set(DBUS_APIDOC_LINK "")
+endif()
 configure_file(index.html.in ${CMAKE_CURRENT_BINARY_DIR}/index.html)
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/index.html DESTINATION ${CMAKE_INSTALL_DATADIR}/doc/dbus)
 
diff --git a/doc/index.html.in b/doc/index.html.in
index feca9fc8..eb61d061 100644
--- a/doc/index.html.in
+++ b/doc/index.html.in
@@ -36,7 +36,7 @@ application manuals
 <a href="dbus-test-plan.html">D-Bus Test Plan</a>
    <br>
    <br>
-<a href="api/index.html">libdbus API Documentation</a>
+@DBUS_APIDOC_LINK@
   </td>
   <td  valign=top>
 <a href="dbus-daemon.1.html">D-Bus Daemon manual</a>