diff --git a/src/lib/elementary/elm_interface_atspi_accessible.eo b/src/lib/elementary/elm_interface_atspi_accessible.eo
index 0f32f71ab2..9c83eef920 100644
--- a/src/lib/elementary/elm_interface_atspi_accessible.eo
+++ b/src/lib/elementary/elm_interface_atspi_accessible.eo
@@ -1,3 +1,6 @@
+/* FIXME: This definitely shouldn't be here. */
+type Eo_Event_Cb: __undefined_type;
+
 enum Elm.Atspi.Type
 {
    [[Type of accessibility object]]