diff --git a/modules/fcitx5/default.nix b/modules/fcitx5/default.nix
index adb4c33..bd15281 100644
--- a/modules/fcitx5/default.nix
+++ b/modules/fcitx5/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ lib, pkgs, ... }:
 
 with import ../theme; let
   themeFolder = ".local/share/fcitx5/themes/${theme}/";
@@ -6,7 +6,18 @@ in
 {
   i18n.inputMethod = {
     enabled = "fcitx5";
-    fcitx5.addons = with pkgs; [ fcitx5-anthy ];
+    fcitx5.addons = with pkgs; [
+      (fcitx5-anthy.overrideAttrs (oldAttrs: {
+        # bugged custom Nicola tables fixed in master
+        # https://github.com/fcitx/fcitx5-anthy/issues/8
+        src = fetchFromGitHub {
+          owner = "fcitx";
+          repo = "fcitx5-anthy";
+          rev = "9031b56c334dd0a2da6a5b5d3ab3570e06395ca0";
+          hash = "sha256-a0z3OoSiiVslrTZuI5PDws+ykWFFKdev7fSpGgjNAA8=";
+        };
+      }))
+    ];
   };
 
   home.file = {
@@ -19,4 +30,16 @@ in
     "${themeFolder}radio.png".source = ./radio.png;
     ".config/fcitx5/conf/classicui.conf".text = "Theme=${theme}";
   };
+  # Generating patch:
+  # $ source="$(find /nix/store -maxdepth 1 -type d -name '*fcitx5-anthy*' | head -n 1)/share/fcitx5/anthy/nicola-j.sty"
+  # $ cp $source nicola.sty
+  # $ chmod 644 nicola.sty
+  # $ vim nicola.sty
+  # $ diff $source nicola.sty > nicola.patch
+  home.activation.nicola = let
+    target = ".local/share/fcitx5/anthy/nicola.sty";
+  in lib.hm.dag.entryAfter["writeBoundary"] ''
+    rm -f -- ${target}
+    patch -ruN ${pkgs.fcitx5-anthy}/share/fcitx5/anthy/nicola-j.sty ${./nicola.patch} -o ${target}
+  '';
 }
diff --git a/modules/fcitx5/nicola.patch b/modules/fcitx5/nicola.patch
new file mode 100644
index 0000000..af9cf9b
--- /dev/null
+++ b/modules/fcitx5/nicola.patch
@@ -0,0 +1,4 @@
+24c24
+< -=−,』,』
+---
+> -=ー,』,』