diff --git a/conf/config.js b/conf/config.js
index 0af4b36..a0e9253 100644
--- a/conf/config.js
+++ b/conf/config.js
@@ -156,7 +156,7 @@ const conf = convict({
   max_file_size: {
     format: Number,
     default: 1024 * 1024 * 1024 * 2.5,
-    env: '__MAX_FILE_SIZE__'
+    env: __MAX_FILE_SIZE__ * 1024 * 1024,
   },
   l10n_dev: {
     format: Boolean,
diff --git a/config_panel.toml b/config_panel.toml
index 2ed17fb..0ac6a11 100644
--- a/config_panel.toml
+++ b/config_panel.toml
@@ -13,10 +13,10 @@ services = ["__APP__"]
         ask.en = "Max File Size"
         ask.fr = "Taille maximale du fichier"
         type = "number"
-        default = 2684354560
-        help.en = "Define the maximum file size limit"
-        help.fr = "Définir la limite de taille maximale du fichier"
-        bind = ":__INSTALL_DIR__/server/config.js"
+        default = 100
+        help.en = "Choose the maximum file size allowed to send (in Mo)"
+        help.fr = "Choisissez la taille maximale du fichier autorisé à envoyer (en Mo)"
+        bind = "max_file_size:__INSTALL_DIR__/server/config.js"
 
         [main.config.max_download]
         ask.en = "Max download"
@@ -25,18 +25,18 @@ services = ["__APP__"]
         default = 100
         help.en = "Define the maximum download limit"
         help.fr = "Définir la limite maximale du nombre de téléchargement"
-        bind = ":__INSTALL_DIR__/server/config.js"
+        bind = "max_download:__INSTALL_DIR__/server/config.js"
 
         [main.config.custom_title]
         ask.en = "Custom Title"
         ask.fr = "Titre personnalisé"
         type = "string"
         help = "Add a custom title for Send"
-        bind = ":__INSTALL_DIR__/server/config.js"
+        bind = "custom_title:__INSTALL_DIR__/server/config.js"
 
         [main.config.custom_description]
         ask.en = "Custom Description"
         ask.fr = "Description personnalisée"
         type = "string"
         help = "Add a custom description for Send"
-        bind = ":__INSTALL_DIR__/server/config.js"
+        bind = "custom_description:__INSTALL_DIR__/server/config.js"
diff --git a/scripts/install b/scripts/install
index e79aea3..2305f9b 100644
--- a/scripts/install
+++ b/scripts/install
@@ -13,7 +13,7 @@ ynh_app_setting_set --key=custom_title --value="$custom_title"
 custom_description="Encrypt and send files with a link that automatically expires to ensure your important documents don’t stay online forever."
 ynh_app_setting_set --key=custom_description --value="$custom_description"
 
-max_file_size=2684354560
+max_file_size=100
 ynh_app_setting_set --key=max_file_size --value="$max_file_size"
 
 max_download=100
diff --git a/scripts/upgrade b/scripts/upgrade
index d688b75..585bf91 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -19,12 +19,12 @@ if [ -z ${custom_description:-} ]; then
 fi
 
 if [ -z ${max_file_size:-} ]; then
-	max_file_size="2684354560"
+	max_file_size=100
 	ynh_app_setting_set --key=max_file_size --value="$max_file_size"
 fi
 
 if [ -z ${max_download:-} ]; then
-	max_download="100"
+	max_download=100
 	ynh_app_setting_set --key=max_download --value="$max_download"
 fi