diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n4/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n4/textbook.es.md
index e24698125..32f821305 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n4/textbook.es.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n4/textbook.es.md
@@ -4,7 +4,7 @@ published: true
 routable: true
 visible: false
 lessons:
-    - slug: brainstormming-n1234-electromagnetism
+    - slug: brainstorming-n1234-electromagnetism
       order: 4
 ---