diff --git a/12.temporary_ins/05.coordinates-systems/30.cylindrical-coordinates/30.beyond/annex.en.md b/12.temporary_ins/05.coordinates-systems/30.cylindrical-coordinates/30.beyond/annex.en.md
index 1d7a51f0d..24e092c86 100644
--- a/12.temporary_ins/05.coordinates-systems/30.cylindrical-coordinates/30.beyond/annex.en.md
+++ b/12.temporary_ins/05.coordinates-systems/30.cylindrical-coordinates/30.beyond/annex.en.md
@@ -14,7 +14,6 @@ lessons:
 
 <!--MetaData : ... -->
 
-$`\longrightarrow`$ Partie Au-delà
 
 ! *Your challenge*  :   
 !