diff --git a/install_manually.md b/install_manually.md
index 41faa392..54bee66f 100644
--- a/install_manually.md
+++ b/install_manually.md
@@ -1,6 +1,10 @@
# Installing YunoHost manually
-Once you have **Debian 9** (with **kernel >= 3.12**) and access to a command line on your server (either directly or through SSH), you can install yunohost by running command as root :
+
+This procedure only works on **Debian 10** machines (with **kernel >= 3.12**))
+
+
+Once you have access to a command line on your server (either directly or through SSH), you can install yunohost by running command as root :
```bash
curl https://install.yunohost.org | bash
diff --git a/install_manually_es.md b/install_manually_es.md
index 8f273361..a6c42109 100644
--- a/install_manually_es.md
+++ b/install_manually_es.md
@@ -1,5 +1,9 @@
# Instalar YunoHost manualmente
+
+This procedure only works on **Debian 10** machines (with **kernel >= 3.12**))
+
+
Una vez que tienes acceso a tu servidor (directamente o con SSH), puedes instalar Yunohost ejecutando este comando como root :
```bash
diff --git a/install_manually_fr.md b/install_manually_fr.md
index 811372e5..101323ce 100644
--- a/install_manually_fr.md
+++ b/install_manually_fr.md
@@ -1,5 +1,9 @@
# Installer YunoHost manuellement
+
+Cette procédure fonctionne seulement sur des machines avec **Debian 10** (et **kernel >= 3.12**))
+
+
Une fois que vous avez accès à votre serveur (directement ou par SSH), vous pouvez installer YunoHost en exécutant cette commande en tant que root :
```bash