diff --git a/app.js b/app.js
index 9e2058e..b70f61c 100644
--- a/app.js
+++ b/app.js
@@ -435,6 +435,7 @@ function handleChoice(idx, val, choices) {
     feedback.textContent = t('incorrect', {n: game.correctAnswer});
     feedback.className = 'answer-feedback incorrect';
     game.mistakes.push({
+      key: game.system,
       system: SYSTEMS[game.system].toDisplay(game.correctAnswer),
       decimal: game.correctAnswer,
       systemName: systemName(game.system),
@@ -489,6 +490,7 @@ function renderNumpad() {
       feedback.textContent = t('incorrect', {n: game.correctAnswer});
       feedback.className = 'answer-feedback incorrect';
       game.mistakes.push({
+        key: game.system,
         system: SYSTEMS[game.system].toDisplay(game.correctAnswer),
         decimal: game.correctAnswer,
         systemName: systemName(game.system),
@@ -554,6 +556,7 @@ function startTimer() {
         feedback.textContent = t('timesUp', {n: game.correctAnswer});
         feedback.className = 'answer-feedback incorrect';
         game.mistakes.push({
+          key: game.system,
           system: SYSTEMS[game.system].toDisplay(game.correctAnswer),
           decimal: game.correctAnswer,
           systemName: systemName(game.system),
@@ -605,8 +608,9 @@ function endGame() {
     game.mistakes.forEach(m => {
       const item = document.createElement('div');
       item.className = 'result-item';
+      const sysClass = m.key === 'slavonic' ? ' slavonic-font' : '';
       item.innerHTML = `
-        <div class="result-system">${m.system}</div>
+        <div class="result-system${sysClass}">${m.system}</div>
         <div class="result-arrow">\u2192</div>
         <div class="result-decimal">${m.decimal}</div>
       `;
diff --git a/index.html b/index.html
index 7af8762..9f8378e 100644
--- a/index.html
+++ b/index.html
@@ -10,7 +10,7 @@
   <link rel="manifest" href="manifest.json">
   <link rel="icon" type="image/svg+xml" href="icon.svg">
   <link rel="apple-touch-icon" href="icon-192.png">
-  <link rel="stylesheet" href="styles.css?v=11">
+  <link rel="stylesheet" href="styles.css?v=13">
 </head>
 <body>
   <div id="app">
@@ -158,10 +158,10 @@
 
   </div>
 
-  <script type="module" src="app.js?v=11"></script>
+  <script type="module" src="app.js?v=13"></script>
   <script>
     if ('serviceWorker' in navigator) {
-      navigator.serviceWorker.register('/sw.js?v=11').catch(() => {});
+      navigator.serviceWorker.register('/sw.js?v=13').catch(() => {});
     }
   </script>
 </body>
diff --git a/styles.css b/styles.css
index 360312f..c387d98 100644
--- a/styles.css
+++ b/styles.css
@@ -391,6 +391,10 @@ body {
   font-size: 3.2rem;
 }
 
+.ticker .slavonic-font {
+  font-size: 1.5rem;
+}
+
 .answer-feedback {
   min-height: 40px;
   font-size: 1.1rem;
diff --git a/sw.js b/sw.js
index 5ede9ff..f60988f 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,4 @@
-const CACHE_NAME = 'numnum-v11';
+const CACHE_NAME = 'numnum-v13';
 const ASSETS = [
   '/',
   '/index.html',
