diff --git a/courses/Maths_PSI_Alg1.markdown b/courses/Maths_PSI_Alg1.markdown
index 3b2ff4f..8f470c4 100644
--- a/courses/Maths_PSI_Alg1.markdown
+++ b/courses/Maths_PSI_Alg1.markdown
@@ -3,7 +3,7 @@ layout: default
 title:  "Cours : Algèbre 1 PSI"
 date:   2024-07-01 12:19:36 +0200
 categories: courses
-exclude : True
+exclude: true
 ---
 
 # 1. Compléments