diff --git a/data/actionsmap/yunohost.yml b/data/actionsmap/yunohost.yml
index a037b7899..371ecf265 100644
--- a/data/actionsmap/yunohost.yml
+++ b/data/actionsmap/yunohost.yml
@@ -882,6 +882,8 @@ service:
                 with the existing configuration file.
                 Prints the differences between files if any.
             api: PUT /services/regenconf
+            configuration:
+                lock: false
             arguments:
                 -s:
                     full: --service
@@ -898,12 +900,15 @@ service:
                 Stores the file hash in the services.yml file
             api: PUT /services/safecopy
             arguments:
-                service:
-                    help: Service name attached to the conf file
                 new_conf_file:
                     help: Path to the desired conf file
                 conf_file:
                     help: Path to the targeted conf file
+                -s:
+                    full: --service
+                    help: Service name attached to the conf file
+                    extra:
+                        required: True
                 -f:
                     full: --force
                     help: Override the current configuration with the newly generated one, even if it has been modified
@@ -916,10 +921,13 @@ service:
                 Backup the file in /home/yunohost.backup
             api: PUT /services/safecopy
             arguments:
-                service:
-                    help: Service name attached to the conf file
                 conf_file:
                     help: Path to the targeted conf file
+                -s:
+                    full: --service
+                    help: Service name attached to the conf file
+                    extra:
+                        required: True
                 -f:
                     full: --force
                     help: Force file deletion
diff --git a/data/hooks/conf_regen/.15-nginx.swn b/data/hooks/conf_regen/.15-nginx.swn
new file mode 100644
index 000000000..72192c866
Binary files /dev/null and b/data/hooks/conf_regen/.15-nginx.swn differ
diff --git a/data/hooks/conf_regen/15-nginx b/data/hooks/conf_regen/15-nginx
index 2cc5eae36..0eaa4ea19 100644
--- a/data/hooks/conf_regen/15-nginx
+++ b/data/hooks/conf_regen/15-nginx
@@ -4,11 +4,11 @@ set -e
 force=$1
 
 function safe_copy () {
-    if $force; then
+    if [ $force ]; then
         sudo yunohost service safecopy \
           -s nginx \
-          --force \
-          $1 $2
+          $1 $2 \
+          --force
     else
         sudo yunohost service safecopy \
           -s nginx \
@@ -19,39 +19,39 @@ function safe_copy () {
 cd /usr/share/yunohost/templates/nginx
 
 # Copy plain single configuration files
-$files="ssowat.conf
+files="ssowat.conf
 yunohost_admin.conf
 yunohost_admin.conf.inc
 yunohost_api.conf.inc
 yunohost_panel.conf.inc"
 
-for file in files; do
+for file in $files; do
     safe_copy $file /etc/nginx/conf.d/$file
 done
 
 
 # Copy 'yunohost.local' to the main domain conf directory
-main_domain=$(sudo yunohost tools maindomain)
+main_domain=$(cat /etc/yunohost/current_host)
 safe_copy yunohost_local.conf \
   /etc/nginx/conf.d/$main_domain.d/yunohost_local.conf
 
 
-need_restart=0
+need_restart=1
 
 # Copy a configuration file for each YunoHost domain 
 for domain in $(sudo yunohost domain list --raw); do
-    sudo mkdir /etc/nginx/conf.d/$domain.d
+    sudo mkdir -p /etc/nginx/conf.d/$domain.d
     cat server.conf.sed \
       | sed "s/{{ domain }}/$domain/g" \
       | sudo tee $domain.conf
-    if $(safe_copy $domain.conf /etc/nginx/conf.d/$domain.conf); then
-        need_restart=1
+    if [[ $(safe_copy $domain.conf /etc/nginx/conf.d/$domain.conf) == "True" ]]; then
+        need_restart=0
     fi
 done
 
 # Restart if need be
-if $need_restart; then
-    service nginx restart
+if [ $need_restart ]; then
+    sudo service nginx restart
 else
-    service nginx reload
+    sudo service nginx reload
 fi
diff --git a/data/templates/nginx/server.conf.j2 b/data/templates/nginx/server.conf.sed
similarity index 100%
rename from data/templates/nginx/server.conf.j2
rename to data/templates/nginx/server.conf.sed
diff --git a/lib/yunohost/service.py b/lib/yunohost/service.py
index 26ac27d68..5bed72e95 100644
--- a/lib/yunohost/service.py
+++ b/lib/yunohost/service.py
@@ -281,10 +281,12 @@ def service_regenconf(service=None, force=False):
                  one, even if it has been modified
 
     """
+    from yunohost.hook import hook_callback
+
     if force:
-        arg_force = 1
-    else:
         arg_force = 0
+    else:
+        arg_force = 1
 
     if service is None:
         # Regen ALL THE CONFIGURATIONS