diff --git a/qrenderdoc/CMakeLists.txt b/qrenderdoc/CMakeLists.txt
index ea94bd756..d7aac6eb8 100644
--- a/qrenderdoc/CMakeLists.txt
+++ b/qrenderdoc/CMakeLists.txt
@@ -20,3 +20,10 @@ install (PROGRAMS share/magic DESTINATION share/doc/renderdoc)
 install (PROGRAMS share/renderdoc.desktop DESTINATION share/applications)
 install (PROGRAMS share/renderdoc.thumbnailer DESTINATION share/thumbnailers)
 install (PROGRAMS share/renderdoc-capture.xml DESTINATION share/mime/packages)
+
+install (CODE "MESSAGE(\"You now need to update some caches.\")")
+install (CODE "MESSAGE(\"e.g.\")")
+install (CODE "MESSAGE(\"sudo update-desktop-database\")")
+install (CODE "MESSAGE(\"sudo update-mime-database /usr/share/mime/\")")
+install (CODE "MESSAGE(\"sudo gtk-update-icon-cache /usr/share/icons/hicolor/\")")
+install (CODE "MESSAGE(\"NB: Your paths may vary.\")")