diff --git a/test/fixtures/SUMMARY.md b/test/fixtures/SUMMARY.md
index 8418f1e44..3bf4a88df 100644
--- a/test/fixtures/SUMMARY.md
+++ b/test/fixtures/SUMMARY.md
@@ -3,8 +3,8 @@
 * [Chapter 1](chapter-1/README.md)
     * [Article 1](chapter-1/ARTICLE1.md)
     * [Article 2](chapter-1/ARTICLE2.md)
-        * [article 1.2.1](chapter-1/ARTICLE-1-2-1.md)
-        * [article 1.2.2](chapter-1/ARTICLE-1-2-2.md)
+        * [article 1.2.1](\chapter-1\ARTICLE-1-2-1.md)
+        * [article 1.2.2](/chapter-1/ARTICLE-1-2-2.md)
 * [Chapter 2](chapter-2/README.md)
 * [Chapter 3](chapter-3/README.md)
 * [Chapter 4](chapter-4/README.md)