diff --git a/nix/configurations/vanadium/overlay.nix b/nix/configurations/vanadium/overlay.nix
index 8418a931..87ae9df3 100644
--- a/nix/configurations/vanadium/overlay.nix
+++ b/nix/configurations/vanadium/overlay.nix
@@ -33,4 +33,9 @@ in
         ./patches/fcitx5/disable-quickphrase.patch
         ./patches/fcitx5/disable-unicode.patch
       ];
+      fcitx5-chinese-addons.__output.cmakeFlags.__append = [
+        (lib.cmakeFeature "ENABLE_BROWSER" "Off")
+        (lib.cmakeFeature "ENABLE_CLOUDPINYIN" "Off")
+        (lib.cmakeFeature "ENABLE_DATA" "Off")
+      ];
     })