diff --git a/nix/configurations/vanadium/nixos/overlay.nix b/nix/configurations/vanadium/nixos/overlay.nix
index 423efbec..62da0e42 100644
--- a/nix/configurations/vanadium/nixos/overlay.nix
+++ b/nix/configurations/vanadium/nixos/overlay.nix
@@ -23,4 +23,8 @@ in
 
       vlc.__input.chromecastSupport = _: false;
       vlc.__input.waylandSupport = _: false;
+
+      fcitx5.__output.cmakeFlags.__append = [
+        (lib.cmakeFeature "ENABLE_EMOJI" "Off")
+      ];
     })