diff --git a/overlays/default.nix b/overlays/default.nix
index 723464e..cce05fe 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -29,6 +29,15 @@
       cifs-utils = super.cifs-utils.overrideAttrs (old: {
         buildInputs = lib.lists.remove pkgs.libcap old.buildInputs;
       });
+      wine = pkgs.symlinkJoin {
+        name = "wine";
+        paths = [super.wine];
+        buildInputs = [pkgs.makeWrapper];
+        postBuild = ''
+          wrapProgram $out/bin/wine \
+            --set LC_ALL "ja_JP.UTF-8"
+        '';
+      };
     })
   ];
 }