diff --git a/pkgs/by-name/mi/mitimasu/package.nix b/pkgs/by-name/mi/mitimasu/package.nix
index dfed49ca118d..4264803940d1 100644
--- a/pkgs/by-name/mi/mitimasu/package.nix
+++ b/pkgs/by-name/mi/mitimasu/package.nix
@@ -2,11 +2,17 @@
   lib,
   stdenvNoCC,
   fetchFromGitHub,
+  installFonts,
 }:
 stdenvNoCC.mkDerivation {
   pname = "mitimasu";
   version = "0-unstable-2023-10-24";
 
+  outputs = [
+    "out"
+    "webfont"
+  ];
+
   src = fetchFromGitHub {
     owner = "kemomimi-no-sato";
     repo = "mitimasu-webfont";
@@ -14,16 +20,7 @@ stdenvNoCC.mkDerivation {
     hash = "sha256-yiAnIVZY9DoIborO/s2KSlt6Zq1kAjKewLd30qBQqio=";
   };
 
-  installPhase = ''
-    runHook preInstall
-
-    install -m444 -Dt $out/share/fonts/truetype fonts/mitimasu.ttf
-    install -m444 -Dt $out/share/fonts/eot fonts/mitimasu.eot
-    install -m444 -Dt $out/share/fonts/woff fonts/mitimasu.woff
-    install -m444 -Dt $out/share/fonts/woff2 fonts/mitimasu.woff2
-
-    runHook postInstall
-  '';
+  nativeBuildInputs = [ installFonts ];
 
   meta = {
     description = "Mitimasu webfont";