diff --git a/esbuild.app.mjs b/esbuild.app.mjs
index e05c23f..f0efd88 100644
--- a/esbuild.app.mjs
+++ b/esbuild.app.mjs
@@ -28,7 +28,12 @@ export default (opt_options) => {
         // if not specified, this plugin uses ESBuild.build outdir/outfile options as base path.
         resolveFrom: 'cwd',
         assets: {
-          from: ['./public/*.png', './public/*.ico', './public/*.webmanifest'],
+          from: [
+            './public/*.png',
+            './public/*.ico',
+            './public/*.webmanifest',
+            './public/*.ttf',
+          ],
           to: ['./dist'],
         },
         watch: true,
diff --git a/public/LiberationSans-Regular.ttf b/public/LiberationSans-Regular.ttf
new file mode 100644
index 0000000..626dd93
Binary files /dev/null and b/public/LiberationSans-Regular.ttf differ
diff --git a/src/worker/openSCAD.ts b/src/worker/openSCAD.ts
index 6952ddd..dce4c64 100644
--- a/src/worker/openSCAD.ts
+++ b/src/worker/openSCAD.ts
@@ -10,6 +10,8 @@ const fontsConf = `<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE fontconfig SYSTEM "urn:fontconfig:fonts.dtd">
 <fontconfig></fontconfig>`;
 
+let defaultFont;
+
 class OpenSCADWrapper {
   log = {
     stdErr: [],
@@ -24,6 +26,10 @@ class OpenSCADWrapper {
       print: this.logger('stdOut'),
       printErr: this.logger('stdErr'),
     });
+    if (!defaultFont) {
+      const fontResponse = await fetch('/LiberationSans-Regular.ttf');
+      defaultFont = await fontResponse.arrayBuffer();
+    }
 
     // Make sure the root directory exists
     this.createDirectoryRecusive(instance, 'fonts');
@@ -31,6 +37,12 @@ class OpenSCADWrapper {
     // Write the font.conf file
     instance.FS.writeFile('/fonts/fonts.conf', fontsConf);
 
+    // Add default font
+    instance.FS.writeFile(
+      'fonts/LiberationSans-Regular.ttf',
+      new Int8Array(defaultFont)
+    );
+
     for (const file of this.files) {
       // Make sure the directory of the file exists
       const path = file.path.split('/');