diff --git a/scripts/install b/scripts/install
index 63e8727..ca95e18 100755
--- a/scripts/install
+++ b/scripts/install
@@ -24,10 +24,6 @@ ynh_script_progression --message="Setting up source files..." --weight=1
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$install_dir"
 
-chmod 750 "$install_dir"
-chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
-
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -55,6 +51,14 @@ pushd $install_dir
 	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH $ynh_npm run build
 popd
 
+chmod 750 "$install_dir"
+chmod -R o-rwx "$install_dir"
+chown -R $app:$app "$install_dir"
+chown $app:www-data -R "$install_dir/frontend/build"
+chown $app:www-data "$install_dir/frontend/build"
+chown $app:www-data "$install_dir/frontend"
+chown $app:www-data "$install_dir"
+
 #=================================================
 # ADD A CONFIGURATION
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index e06d7da..e70e686 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -28,7 +28,11 @@ ynh_restore_file --origin_path="$install_dir"
 
 chmod 750 "$install_dir"
 chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
+chown -R $app:$app "$install_dir"
+chown $app:www-data -R "$install_dir/frontend/build"
+chown $app:www-data "$install_dir/frontend/build"
+chown $app:www-data "$install_dir/frontend"
+chown $app:www-data "$install_dir"
 
 #=================================================
 # SPECIFIC RESTORATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 3d555e2..662e779 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -88,10 +88,6 @@ then
 	ynh_setup_source --dest_dir="$install_dir"
 fi
 
-chmod 750 "$install_dir"
-chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
-
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -126,6 +122,14 @@ pushd $install_dir
 	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH $ynh_npm run build
 popd
 
+chmod 750 "$install_dir"
+chmod -R o-rwx "$install_dir"
+chown -R $app:$app "$install_dir"
+chown $app:www-data -R "$install_dir/frontend/build"
+chown $app:www-data "$install_dir/frontend/build"
+chown $app:www-data "$install_dir/frontend"
+chown $app:www-data "$install_dir"
+
 #=================================================
 # UPDATE A CONFIG FILE
 #=================================================