diff --git a/chapters/en/chapter1/7.mdx b/chapters/en/chapter1/7.mdx
index e39c5ca8e..17c446d6a 100644
--- a/chapters/en/chapter1/7.mdx
+++ b/chapters/en/chapter1/7.mdx
@@ -1,4 +1,4 @@
-# Sequence-to-sequence models[sequence-to-sequence-models]
+# Sequence-to-sequence models[[sequence-to-sequence-models]]
 
 <CourseFloatingBanner
     chapter={1}