diff --git a/README.Wayland.txt b/README.Wayland.txt
index f586d8075..4bd45f837 100644
--- a/README.Wayland.txt
+++ b/README.Wayland.txt
@@ -171,6 +171,10 @@ Feedback for other writing systems would be helpful.
 * Using OpenGL inside Wayland windows doesn't seem to work on RaspberryPi hardware,
 although it works inside X11 windows on the same hardware.
 
+* Drag-and-drop initiation from a subwindow doesn't work under the KDE/Plasma desktop.
+That is most probably a KWin bug because no such problem occurs with 3 other
+Wayland compositors (Mutter, Weston, Sway). A workaround is proposed in issue #997
+of the FLTK github repository (https://github.com/fltk/fltk/issues/997).
 
 3 Platform Specific Notes
 =========================