diff --git a/pkgs/tools/inputmethods/fcitx5/default.nix b/pkgs/tools/inputmethods/fcitx5/default.nix
index 8b88e94b5e1b..6267021e208c 100644
--- a/pkgs/tools/inputmethods/fcitx5/default.nix
+++ b/pkgs/tools/inputmethods/fcitx5/default.nix
@@ -34,6 +34,7 @@
 , xcb-imdkit
 , libxkbfile
 , nixosTests
+, gettext
 }:
 let
   enDictVer = "20121020";
@@ -62,9 +63,11 @@ stdenv.mkDerivation rec {
     extra-cmake-modules
     pkg-config
     wayland-scanner
+    gettext
   ];
 
   buildInputs = [
+    extra-cmake-modules # required to please CMake
     expat
     fmt
     isocodes
@@ -94,6 +97,8 @@ stdenv.mkDerivation rec {
     libxkbfile
   ];
 
+  strictDeps = true;
+
   passthru = {
     updateScript = ./update.py;
     tests = {