diff --git a/Engines/Wine/Verbs/corefonts/script.js b/Engines/Wine/Verbs/corefonts/script.js
index e6f199c5c0..8a490e2d9b 100644
--- a/Engines/Wine/Verbs/corefonts/script.js
+++ b/Engines/Wine/Verbs/corefonts/script.js
@@ -1,6 +1,6 @@
 const Wine = include("engines.wine.engine.object");
 const Resource = include("utils.functions.net.resource");
-const {CabExtract} = include("utils.functions.filesystem.extract");
+const { CabExtract } = include("utils.functions.filesystem.extract");
 
 include("engines.wine.plugins.register_font");
 include("engines.wine.verbs.luna");
@@ -11,98 +11,94 @@ include("engines.wine.verbs.luna");
  * @returns {Wine} Wine object
  */
 Wine.prototype.corefonts = function () {
-    var fontResources =
-        [
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/arial32.exe")
-                .checksum("6d75f8436f39ab2da5c31ce651b7443b4ad2916e")
-                .name("arial32.exe")
-                .get(),
-
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/arialb32.exe")
-                .checksum("d45cdab84b7f4c1efd6d1b369f50ed0390e3d344")
-                .name("arialb32.exe")
-                .get(),
-
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/comic32.exe")
-                .checksum("2371d0327683dcc5ec1684fe7c275a8de1ef9a51")
-                .name("comic32.exe")
-                .get(),
-
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/courie32.exe")
-                .checksum("06a745023c034f88b4135f5e294fece1a3c1b057")
-                .name("courie32.exe")
-                .get(),
-
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/georgi32.exe")
-                .checksum("90e4070cb356f1d811acb943080bf97e419a8f1e")
-                .name("georgi32.exe")
-                .get(),
-
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/impact32.exe")
-                .checksum("86b34d650cfbbe5d3512d49d2545f7509a55aad2")
-                .name("impact32.exe")
-                .get(),
-
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/times32.exe")
-                .checksum("20b79e65cdef4e2d7195f84da202499e3aa83060")
-                .name("times32.exe")
-                .get(),
-
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/trebuc32.exe ")
-                .checksum("50aab0988423efcc9cf21fac7d64d534d6d0a34a")
-                .name("trebuc32.exe")
-                .get(),
-
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/verdan32.exe ")
-                .checksum("f5b93cedf500edc67502f116578123618c64a42a")
-                .name("verdan32.exe")
-                .get(),
-
-            new Resource()
-                .wizard(this.wizard())
-                .url("https://mirrors.kernel.org/gentoo/distfiles/webdin32.exe ")
-                .checksum("2fb4a42c53e50bc70707a7b3c57baf62ba58398f")
-                .name("webdin32.exe")
-                .get()
-        ];
-
-    var progressBar = this.wizard().progressBar(tr("Please wait..."));
+    const fontResources = [
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/arial32.exe")
+            .checksum("6d75f8436f39ab2da5c31ce651b7443b4ad2916e")
+            .name("arial32.exe")
+            .get(),
+
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/arialb32.exe")
+            .checksum("d45cdab84b7f4c1efd6d1b369f50ed0390e3d344")
+            .name("arialb32.exe")
+            .get(),
+
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/comic32.exe")
+            .checksum("2371d0327683dcc5ec1684fe7c275a8de1ef9a51")
+            .name("comic32.exe")
+            .get(),
+
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/courie32.exe")
+            .checksum("06a745023c034f88b4135f5e294fece1a3c1b057")
+            .name("courie32.exe")
+            .get(),
+
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/georgi32.exe")
+            .checksum("90e4070cb356f1d811acb943080bf97e419a8f1e")
+            .name("georgi32.exe")
+            .get(),
+
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/impact32.exe")
+            .checksum("86b34d650cfbbe5d3512d49d2545f7509a55aad2")
+            .name("impact32.exe")
+            .get(),
+
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/times32.exe")
+            .checksum("20b79e65cdef4e2d7195f84da202499e3aa83060")
+            .name("times32.exe")
+            .get(),
+
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/trebuc32.exe ")
+            .checksum("50aab0988423efcc9cf21fac7d64d534d6d0a34a")
+            .name("trebuc32.exe")
+            .get(),
+
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/verdan32.exe ")
+            .checksum("f5b93cedf500edc67502f116578123618c64a42a")
+            .name("verdan32.exe")
+            .get(),
+
+        new Resource()
+            .wizard(this.wizard())
+            .url("https://mirrors.kernel.org/gentoo/distfiles/webdin32.exe ")
+            .checksum("2fb4a42c53e50bc70707a7b3c57baf62ba58398f")
+            .name("webdin32.exe")
+            .get()
+    ];
+
+    const progressBar = this.wizard().progressBar(tr("Please wait..."));
     progressBar.setText(tr("Installing {0}...", tr("fonts")));
-    progressBar.setProgressPercentage(0.);
+    progressBar.setProgressPercentage(0);
 
-    var numInstalledFonts = 0;
-
-    var that = this;
-    fontResources.forEach(function (fontResource) {
+    fontResources.reduce((numInstalledFonts, fontResource) => {
         progressBar.setText(tr("Installing {0}...", tr("fonts")));
-        progressBar.setProgressPercentage(numInstalledFonts * 100 / fontResources.length);
+        progressBar.setProgressPercentage((numInstalledFonts * 100) / fontResources.length);
 
         new CabExtract()
             .archive(fontResource)
-            .wizard(null)
-            .to(that.fontDirectory())
+            .wizard(this.wizard())
+            .to(this.fontDirectory())
             .extract();
 
-        numInstalledFonts++;
-    });
+        return numInstalledFonts + 1;
+    }, 0);
 
     this.registerFont()
         .set("Arial", "Arial.TTF")
@@ -135,24 +131,28 @@ Wine.prototype.corefonts = function () {
         .set("Verdana Italic", "Verdanai.TTF")
         .set("Webdings", "Webdings.TTF")
         .do();
+
     return this;
-}
+};
 
 /**
  * Verb to install corefonts
  */
-// eslint-disable-next-line no-unused-vars
 module.default = class CorefontsVerb {
     constructor() {
         // do nothing
     }
 
     install(container) {
-        var wine = new Wine();
+        const wine = new Wine();
+
         wine.prefix(container);
-        var wizard = SetupWizard(InstallationType.VERBS, "corefonts", java.util.Optional.empty());
+
+        const wizard = SetupWizard(InstallationType.VERBS, "corefonts", java.util.Optional.empty());
+
         wine.wizard(wizard);
         wine.corefonts();
+
         wizard.close();
     }
-}
+};