diff --git a/configure.ac b/configure.ac
index a02e8d54f..a41a93ca4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -338,6 +338,7 @@ echo "
         Use *_DISABLE_DEPRECATED:      ${enable_deprecation_flags}
         Applets to build in-process:   ${PANEL_INPROCESS_APPLETS}
         XRandr support:                ${have_randr}
+        RDA support:                   ${have_rda}
         Build introspection support:   ${found_introspection}
         Build gtk-doc documentation:   ${enable_gtk_doc}