diff --git a/pkgs/by-name/mp/mpv/scripts/modernx-zydezu.nix b/pkgs/by-name/mp/mpv/scripts/modernx-zydezu.nix
index d0ac93c53d24..a89341386037 100644
--- a/pkgs/by-name/mp/mpv/scripts/modernx-zydezu.nix
+++ b/pkgs/by-name/mp/mpv/scripts/modernx-zydezu.nix
@@ -2,6 +2,7 @@
   lib,
   buildLua,
   fetchFromGitHub,
+  installFonts,
   makeFontsConf,
   nix-update-script,
 }:
@@ -17,10 +18,8 @@ buildLua (finalAttrs: {
     hash = "sha256-a+StfEYQwt5NuELvanvZllrD2RQ0g9JBpCznMdSDM5Y=";
   };
 
-  postInstall = ''
-    mkdir -p $out/share/fonts
-    cp -r *.ttf $out/share/fonts
-  '';
+  nativeBuildInputs = [ installFonts ];
+
   passthru.extraWrapperArgs = [
     "--set"
     "FONTCONFIG_FILE"
diff --git a/pkgs/by-name/mp/mpv/scripts/modernx.nix b/pkgs/by-name/mp/mpv/scripts/modernx.nix
index a5ae4e7b3c6f..886ba96a437f 100644
--- a/pkgs/by-name/mp/mpv/scripts/modernx.nix
+++ b/pkgs/by-name/mp/mpv/scripts/modernx.nix
@@ -2,6 +2,7 @@
   lib,
   buildLua,
   fetchFromGitHub,
+  installFonts,
   makeFontsConf,
   nix-update-script,
 }:
@@ -17,10 +18,8 @@ buildLua (finalAttrs: {
     hash = "sha256-q7DwyfmOIM7K1L7vvCpq1EM0RVpt9E/drhAa9rLYb1k=";
   };
 
-  postInstall = ''
-    mkdir -p $out/share/fonts
-    cp -r *.ttf $out/share/fonts
-  '';
+  nativeBuildInputs = [ installFonts ];
+
   passthru.extraWrapperArgs = [
     "--set"
     "FONTCONFIG_FILE"
diff --git a/pkgs/by-name/mp/mpv/scripts/modernz.nix b/pkgs/by-name/mp/mpv/scripts/modernz.nix
index 17b0700286fd..ac8ac744fa0a 100644
--- a/pkgs/by-name/mp/mpv/scripts/modernz.nix
+++ b/pkgs/by-name/mp/mpv/scripts/modernz.nix
@@ -2,6 +2,7 @@
   lib,
   buildLua,
   fetchFromGitHub,
+  installFonts,
   makeFontsConf,
   nix-update-script,
 }:
@@ -17,9 +18,7 @@ buildLua (finalAttrs: {
     hash = "sha256-9jth8TCAx/cmbAfO8s+1WPpMDuF79gQtVlC4OG2adrA=";
   };
 
-  postInstall = ''
-    install -Dt $out/share/fonts *.ttf
-  '';
+  nativeBuildInputs = [ installFonts ];
 
   passthru.extraWrapperArgs = [
     "--set"
diff --git a/pkgs/by-name/mp/mpv/scripts/mpv-osc-modern.nix b/pkgs/by-name/mp/mpv/scripts/mpv-osc-modern.nix
index 89231e405a1f..f9dba8fe9808 100644
--- a/pkgs/by-name/mp/mpv/scripts/mpv-osc-modern.nix
+++ b/pkgs/by-name/mp/mpv/scripts/mpv-osc-modern.nix
@@ -2,6 +2,7 @@
   lib,
   buildLua,
   fetchFromGitHub,
+  installFonts,
   makeFontsConf,
   nix-update-script,
 }:
@@ -17,10 +18,8 @@ buildLua (finalAttrs: {
     hash = "sha256-RMUy8UpSRSCEPAbnGLpJ2NjDsDdkjq8cNsdGwsQ5ANU=";
   };
 
-  postInstall = ''
-    mkdir -p $out/share/fonts
-    cp -r *.ttf $out/share/fonts
-  '';
+  nativeBuildInputs = [ installFonts ];
+
   passthru.extraWrapperArgs = [
     "--set"
     "FONTCONFIG_FILE"