diff --git a/shared/font-utils/index.js b/shared/font-utils/index.js
index fbc5b460ce..891c6f1d35 100644
--- a/shared/font-utils/index.js
+++ b/shared/font-utils/index.js
@@ -190,7 +190,15 @@ export function mapWordFamilyFallback(wordFamily) {
  */
 export function toCssFontFamily(fontName, options = {}) {
   if (!fontName || typeof fontName !== 'string') return fontName;
-  const trimmed = fontName.trim();
+  let trimmed = fontName.trim();
+  // replace semicolon font fallback separators
+  if (trimmed.includes(';')) {
+    trimmed = trimmed
+      .split(';')
+      .map((part) => part.trim())
+      .filter(Boolean)
+      .join(', ');
+  }
   if (!trimmed || trimmed.includes(',')) return trimmed;
 
   const { fallback, wordFamily } = options;