diff --git a/tools/install_debian11.sh b/tools/install_debian11.sh
index ebcae0d2..28bf6136 100755
--- a/tools/install_debian11.sh
+++ b/tools/install_debian11.sh
@@ -47,6 +47,16 @@ done
 change_scodoc_file_ownership
 set_scodoc_var_dir
 
+# ------------ LOCALES
+locname="en_US.UTF-8"
+outname=$(echo ${locname//-/} | tr '[A-Z]' '[a-z]')
+if [ "$(locale -a | grep -E -i ^${outname}$ | wc -l)" -lt 1 ]
+then
+    echo adding $locname
+    echo "$locname ${locname##*.}" >> /etc/locale.gen
+    /usr/sbin/locale-gen --keep-existing 
+fi
+
 # ------------ AJOUT DES PAQUETS DEBIAN NECESSAIRES
 apt-get update
 apt-get -y install gcc