diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n3/textbook.en.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n3/textbook.en.md
index eefe6ae6b..2abb97844 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n3/textbook.en.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n3/textbook.en.md
@@ -6,6 +6,7 @@ visible: false
 lessons:
     - slug: brainstorming-123-electromagnetism
       order: 3
+lessons:
     - slug: brainstorming-234-electromagnetism
       order: 2
 ---