diff --git a/communication_techniques/parsing.sh b/communication_techniques/parsing.sh
index a862450..2baa87e 100755
--- a/communication_techniques/parsing.sh
+++ b/communication_techniques/parsing.sh
@@ -321,6 +321,11 @@ main()
 {
 	local -
 
+	if [ -n "$1" ]
+	then
+		cd "$1"
+	fi
+
 	for prod in $prodList ; do
 		case "$prod" in
 			matrice) argTypeProd=16 ;;
@@ -372,4 +377,4 @@ main()
 	done
 }
 
-main
+main "$@"