diff --git a/scrape/parse/v3.js b/scrape/parse/v3.js
index 0426fa4..1180320 100644
--- a/scrape/parse/v3.js
+++ b/scrape/parse/v3.js
@@ -265,7 +265,7 @@ function parseLessonCell(cell, themeColors) {
 
     const backgroundColor = resolveCellColor(cell, themeColors);
     const foregroundColor = !backgroundColor ? undefined : (
-      cell.font?.color?.argb === undefined ? undefined : `#${cell.font.color.argb}`
+      cell.font?.color?.argb === undefined ? "#FF000000" : `#${cell.font.color.argb}`
     );
 
     return {