diff --git a/pkgs/tools/inputmethods/fcitx/fcitx-qt5.nix b/pkgs/tools/inputmethods/fcitx/fcitx-qt5.nix
index 1a3352676b1..50ab7d85c5a 100644
--- a/pkgs/tools/inputmethods/fcitx/fcitx-qt5.nix
+++ b/pkgs/tools/inputmethods/fcitx/fcitx-qt5.nix
@@ -1,4 +1,6 @@
-{ stdenv, lib, fetchurl, cmake, fcitx, pkgconfig, qtbase, extra-cmake-modules }:
+{ stdenv, lib, fetchurl, cmake, fcitx, pkgconfig, qtbase, extra-cmake-modules
+, fetchpatch
+}:
 
 stdenv.mkDerivation rec {
   name = "fcitx-qt5-${version}";
@@ -9,6 +11,15 @@ stdenv.mkDerivation rec {
     sha256 = "0z8ax0dxk88byic41mfaiahjdv1k8ciwn97xfjkkgr4ijgscdr8c";
   };
 
+  patches = [
+    # Fix build with Qt 5.11
+    # https://github.com/fcitx/fcitx-qt5/issues/34
+    (fetchpatch {
+      url = https://github.com/fcitx/fcitx-qt5/commit/af033e3d5305108eecc568adff7f8b2da5831ed6.diff;
+      sha256 = "14vfz1fw2k362wnqpglw766fg3d3mc8cmfgic2p96yyipjh9xx3b";
+    })
+  ];
+
   nativeBuildInputs = [ cmake extra-cmake-modules pkgconfig ];
 
   buildInputs = [ fcitx qtbase ];