diff --git a/pkgs/development/libraries/qt-5/modules/qtwayland.nix b/pkgs/development/libraries/qt-5/modules/qtwayland.nix
index 851e4ad6966b..e4870ec48463 100644
--- a/pkgs/development/libraries/qt-5/modules/qtwayland.nix
+++ b/pkgs/development/libraries/qt-5/modules/qtwayland.nix
@@ -1,4 +1,4 @@
-{ qtModule, qtbase, qtquickcontrols, wayland, pkg-config }:
+{ qtModule, qtbase, qtquickcontrols, wayland, pkg-config, fetchpatch }:
 
 qtModule {
   pname = "qtwayland";
@@ -11,5 +11,13 @@ qtModule {
     # wrapped executables from `wrapQtAppsHook` (see comment in patch for further
     # context).  Beware: shared among different Qt5 versions.
     ./qtwayland-app_id.patch
+    # Backport of https://codereview.qt-project.org/c/qt/qtwayland/+/388338
+    # Pulled from Fedora as they modified it to not apply to KDE as Plasma 5.x
+    # doesn't behave properly with the patch applied. See the discussion at
+    # https://invent.kde.org/qt/qt/qtwayland/-/merge_requests/39 for details
+    (fetchpatch {
+      url = "https://src.fedoraproject.org/rpms/qt5-qtwayland/raw/46376bb00d4c3dd3db2e82ad7ca5301ce16ea4ab/f/0080-Client-set-constraint-adjustments-for-popups-in-xdg.patch";
+      sha256 = "sha256-XP+noYCk8fUdA0ItCqMjV7lSXDlNdB7Az9q7NRpupHc=";
+    })
   ];
 }