diff --git a/TEX/haut1.tex b/TEX/haut1.tex
index 022565c..730b465 100644
--- a/TEX/haut1.tex
+++ b/TEX/haut1.tex
@@ -18,10 +18,11 @@
     \draw[thick,dashed] [-latex] (1) --  (2);
     
   \draw[thick] [-[] (4) --  (5);
-      
+
+    
     \draw[thick] [-latex] (5) .. controls (7,6) ..  (6,3);
 
-      \draw[thick] [-latex] (3) .. controls (10,10) ..  (1);
+      \draw[thick, decoration = {zigzag}, decorate] [-latex] (3) .. controls (10,10) ..  (1);
 
   \draw[thick] [-latex] (9.5,5.7) --  (8,2.5) ;