diff --git a/muk_web_theme/__init__.py b/muk_web_theme/__init__.py
index 5ac025d..d1c1448 100644
--- a/muk_web_theme/__init__.py
+++ b/muk_web_theme/__init__.py
@@ -17,6 +17,8 @@
 #
 ###################################################################################
 
+from odoo import api, SUPERUSER_ID
+
 from . import models
 
 #----------------------------------------------------------
@@ -28,4 +30,5 @@ XML_ID = "muk_web_theme._assets_primary_variables"
 SCSS_URL = "/muk_web_theme/static/src/scss/colors.scss"
 
 def _uninstall_reset_changes(cr, registry):
-    self.env['muk_utils.scss_editor'].reset_values(SCSS_URL, XML_ID)
\ No newline at end of file
+    env = api.Environment(cr, SUPERUSER_ID, {})
+    env['muk_utils.scss_editor'].reset_values(SCSS_URL, XML_ID)
\ No newline at end of file
diff --git a/muk_web_theme/__manifest__.py b/muk_web_theme/__manifest__.py
index 044a13e..21eb138 100644
--- a/muk_web_theme/__manifest__.py
+++ b/muk_web_theme/__manifest__.py
@@ -19,7 +19,7 @@
 {
     "name": "MuK Backend Theme",
     "summary": "Odoo Community Backend Theme",
-    "version": "12.0.1.2.5",
+    "version": "12.0.1.2.6",
     "category": "Themes/Backend",
     "license": "AGPL-3",
     "author": "MuK IT",