diff --git a/mail_environment/__manifest__.py b/mail_environment/__manifest__.py
index 5ae2b6512..10f9fe761 100644
--- a/mail_environment/__manifest__.py
+++ b/mail_environment/__manifest__.py
@@ -10,6 +10,7 @@
     'author': "Camptocamp,Odoo Community Association (OCA)",
     'license': 'AGPL-3',
     'website': 'http://odoo-community.org',
+    'preloadable': False,
     'depends': ['fetchmail',
                 'server_environment',
                 ],
diff --git a/mail_environment/static/description/icon.png b/mail_environment/static/description/icon.png
deleted file mode 100644
index 3a0328b51..000000000
Binary files a/mail_environment/static/description/icon.png and /dev/null differ
diff --git a/server_environment/__manifest__.py b/server_environment/__manifest__.py
index 6e9f66a08..150512f5b 100644
--- a/server_environment/__manifest__.py
+++ b/server_environment/__manifest__.py
@@ -28,6 +28,7 @@
     "website": "http://odoo-community.org/",
     "license": "GPL-3 or any later version",
     "category": "Tools",
+    "preloadable": False,
     "data": [
         'security/res_groups.xml',
         'serv_config.xml',
diff --git a/server_environment/static/description/icon.png b/server_environment/static/description/icon.png
deleted file mode 100644
index 3a0328b51..000000000
Binary files a/server_environment/static/description/icon.png and /dev/null differ
diff --git a/server_environment_files_sample/__manifest__.py b/server_environment_files_sample/__manifest__.py
index 3d6339ffd..5afb0219f 100644
--- a/server_environment_files_sample/__manifest__.py
+++ b/server_environment_files_sample/__manifest__.py
@@ -26,6 +26,7 @@
     "author": "Camptocamp,Odoo Community Association (OCA)",
     "summary": "sample config file for server_environment",
     "website": "http://www.camptocamp.com",
+    "preloadable": False,
     "license": "GPL-3 or any later version",
     "category": "Tools",
     "data": [],
diff --git a/server_environment_files_sample/static/description/icon.png b/server_environment_files_sample/static/description/icon.png
deleted file mode 100644
index 3a0328b51..000000000
Binary files a/server_environment_files_sample/static/description/icon.png and /dev/null differ
diff --git a/server_environment_ir_config_parameter/__manifest__.py b/server_environment_ir_config_parameter/__manifest__.py
index a48e34a0b..50d78b2fe 100644
--- a/server_environment_ir_config_parameter/__manifest__.py
+++ b/server_environment_ir_config_parameter/__manifest__.py
@@ -10,6 +10,7 @@
     'license': 'AGPL-3',
     'author': 'ACSONE SA/NV,Odoo Community Association (OCA)',
     'website': 'https://odoo-community.org/',
+    'preloadable': False,
     'depends': [
         'server_environment',
     ],
diff --git a/server_environment_ir_config_parameter/static/description/icon.png b/server_environment_ir_config_parameter/static/description/icon.png
deleted file mode 100644
index 3a0328b51..000000000
Binary files a/server_environment_ir_config_parameter/static/description/icon.png and /dev/null differ