diff --git a/pkgs/desktops/plasma-5/kscreenlocker.nix b/pkgs/desktops/plasma-5/kscreenlocker.nix
index e748121132c..ace14b385e6 100644
--- a/pkgs/desktops/plasma-5/kscreenlocker.nix
+++ b/pkgs/desktops/plasma-5/kscreenlocker.nix
@@ -1,13 +1,14 @@
 {
-  mkDerivation,
+  mkDerivation, lib,
   extra-cmake-modules, kdoctools,
   kcmutils, kcrash, kdeclarative, kdelibs4support, kglobalaccel, kidletime,
-  kwayland, libXcursor, pam, plasma-framework, qtdeclarative, qtx11extras,
+  kwayland, libXcursor, pam, plasma-framework, qtbase, qtdeclarative, qtx11extras,
   wayland,
 }:
 
 mkDerivation {
   name = "kscreenlocker";
+  meta.broken = lib.versionOlder qtbase.version "5.15.0";
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   buildInputs = [
     kcmutils kcrash kdeclarative kdelibs4support kglobalaccel kidletime kwayland