diff --git a/scripts/install b/scripts/install
index 18a5b23..bf26b94 100644
--- a/scripts/install
+++ b/scripts/install
@@ -37,14 +37,15 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Adding a configuration file..." --weight=1
 
-# max file upload size
-MEDIA_UPLOAD_SIZE="${media_upload_size:0:2}000000" # convert the MB argument in bytes
-
 ynh_add_config --template="../conf/.env" --destination="$install_dir/.env"
 
 chmod 400 "$install_dir/.env"
 chown $app:$app "$install_dir/.env"
 
+# max file upload size
+MEDIA_UPLOAD_SIZE="${media_upload_size:0:2}000000" # convert the MB argument in bytes
+ynh_replace_string --match_string="UPLOAD_LIMIT=MEDIA_UPLOAD_SIZE" --replace_string="UPLOAD_LIMIT=$(MEDIA_UPLOAD_SIZE)" --target_file="$install_dir/.env"
+
 #=================================================
 # SPECIFIC SETUP
 #=================================================
@@ -69,7 +70,7 @@ source $install_dir/.env
 
 ynh_script_progression --message="Configuring Bonfire release..." --weight=1
 cd $install_dir
-ynh_exec_warn ynh_exec_as $app -s $SHELL -lc "just config"
+ynh_exec_warn just config
 
 ynh_exec_warn cat .env