diff --git a/shared/src/book/book-paint.ts b/shared/src/book/book-paint.ts
index fb136e1ab..ebe1672c9 100644
--- a/shared/src/book/book-paint.ts
+++ b/shared/src/book/book-paint.ts
@@ -186,6 +186,8 @@ function elementColours(el: BookElement): string[] {
     case 'text':
     case 'icon':
       return [lower(el.color)];
+    case 'sticker':
+      return el.colors.map(lower);
     default:
       return [lower(el.color), lower(el.accent)];
   }