diff --git a/docs/reference/gtk/gtk3.types.in b/docs/reference/gtk/gtk3.types.in
index be467fffb3..8f7ff3cca2 100644
--- a/docs/reference/gtk/gtk3.types.in
+++ b/docs/reference/gtk/gtk3.types.in
@@ -90,6 +90,7 @@ gtk_gesture_rotate_get_type
 gtk_gesture_single_get_type
 gtk_gesture_swipe_get_type
 gtk_gesture_zoom_get_type
+gtk_gl_area_get_type
 gtk_grid_get_type
 gtk_handle_box_get_type
 gtk_hbox_get_type