diff --git a/addons/im_livechat/views/im_livechat_channel_templates.xml b/addons/im_livechat/views/im_livechat_channel_templates.xml
index da4a0a628dd..35f81330259 100644
--- a/addons/im_livechat/views/im_livechat_channel_templates.xml
+++ b/addons/im_livechat/views/im_livechat_channel_templates.xml
@@ -186,6 +186,7 @@
             <script type="text/javascript" src="/mail/static/src/js/utils.js"></script>
             <script type="text/javascript" src="/im_livechat/static/src/legacy/public_livechat.js"></script>
             <t t-call="web._assets_helpers"/>
+            <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
             <link rel="stylesheet" type="text/scss" href="/im_livechat/static/src/scss/im_livechat_bootstrap.scss"/>
             <link rel="stylesheet" type="text/scss" href="/im_livechat/static/src/legacy/public_livechat.scss"/>
         </template>
diff --git a/addons/mass_mailing/views/assets.xml b/addons/mass_mailing/views/assets.xml
index 0813648b6cd..96dc4fcc101 100644
--- a/addons/mass_mailing/views/assets.xml
+++ b/addons/mass_mailing/views/assets.xml
@@ -22,6 +22,7 @@
 
     <template id="assets_mail_themes_edition"> <!-- maybe to remove and convert into a field dumy with attr invisible if the template is not selected -->
         <t t-call="web._assets_helpers"/>
+        <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
         <link rel="stylesheet" type="text/scss" href="/mass_mailing/static/src/scss/mass_mailing.ui.scss"/>
         <link rel="stylesheet" type="text/scss" href="/web/static/src/scss/webclient.scss"/>
     </template>
diff --git a/addons/snailmail/views/report_assets.xml b/addons/snailmail/views/report_assets.xml
index 20c2d2c1369..f5715abd2bf 100644
--- a/addons/snailmail/views/report_assets.xml
+++ b/addons/snailmail/views/report_assets.xml
@@ -2,6 +2,7 @@
 <odoo>
     <template id="report_assets_snailmail">
         <t t-call="web._assets_helpers"/>
+        <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
         <link rel="stylesheet" type="text/scss" href="/snailmail/static/src/scss/snailmail_external_layout_asset.scss"/>
         <script type="text/javascript" src="/snailmail/static/src/js/snailmail_external_layout.js"/>
     </template>
diff --git a/addons/survey/views/assets.xml b/addons/survey/views/assets.xml
index a05c8f9340e..664fa801b57 100644
--- a/addons/survey/views/assets.xml
+++ b/addons/survey/views/assets.xml
@@ -14,9 +14,9 @@
         <script type="text/javascript" src="/survey/static/src/js/survey_print.js" />
         <script type="text/javascript" src="/survey/static/src/js/survey_result.js" />
 
-        <t t-call="web._assets_helpers">
-            <t t-call="web._assets_frontend_helpers"/>
-        </t>
+        <t t-call="web._assets_helpers"/>
+        <t t-call="web._assets_frontend_helpers"/>
+        <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
         <link href="/survey/static/src/css/survey_print.css" rel="stylesheet" type="text/css"/>
         <link href="/survey/static/src/css/survey_result.css" rel="stylesheet" type="text/css"></link>
         <link rel="stylesheet" type="text/scss" href="/survey/static/src/scss/survey_form.scss"/>
diff --git a/addons/web/views/report_templates.xml b/addons/web/views/report_templates.xml
index 573d1f1a161..1dc19a75ee3 100644
--- a/addons/web/views/report_templates.xml
+++ b/addons/web/views/report_templates.xml
@@ -3,9 +3,9 @@
     <!-- Assets for reports -->
 
     <template id="report_assets_common">
-        <t t-call="web._assets_helpers">
-          <link rel="stylesheet" type="text/scss" href="/web/static/src/scss/bootstrap_overridden_report.scss"/>
-        </t>
+        <t t-call="web._assets_helpers"/>
+        <link rel="stylesheet" type="text/scss" href="/web/static/src/scss/bootstrap_overridden_report.scss"/>
+        <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
 
         <t t-call="web._assets_bootstrap"/>
 
diff --git a/addons/web/views/webclient_templates.xml b/addons/web/views/webclient_templates.xml
index 7ee7c5877d7..ba9a28de7b2 100644
--- a/addons/web/views/webclient_templates.xml
+++ b/addons/web/views/webclient_templates.xml
@@ -21,10 +21,6 @@
         <t t-call="web._assets_utils"/>
         <t t-call="web._assets_primary_variables"/>
         <t t-call="web._assets_secondary_variables"/>
-
-        <t t-raw="0"/>
-
-        <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
     </template>
 
     <template id="_assets_backend_helpers">
@@ -55,6 +51,7 @@
 
     <template id="assets_common" name="Common Assets (used in backend interface and website)">
         <t t-call="web._assets_helpers"/>
+        <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
 
         <link rel="stylesheet" type="text/css" href="/web/static/lib/jquery.ui/jquery-ui.css"/>
         <link rel="stylesheet" type="text/css" href="/web/static/lib/fontawesome/css/font-awesome.css"/>
@@ -187,9 +184,9 @@
     </template>
 
     <template id="assets_backend" name="Backend Assets (used in backend interface)">
-        <t t-call="web._assets_helpers">
-            <t t-call="web._assets_backend_helpers"/>
-        </t>
+        <t t-call="web._assets_helpers"/>
+        <t t-call="web._assets_backend_helpers"/>
+        <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
 
         <t t-call="web._assets_bootstrap"/>
 
@@ -408,9 +405,9 @@
     </template>
 
     <template id="assets_frontend" name="Website Assets">
-        <t t-call="web._assets_helpers">
-            <t t-call="web._assets_frontend_helpers"/>
-        </t>
+        <t t-call="web._assets_helpers"/>
+        <t t-call="web._assets_frontend_helpers"/>
+        <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
 
         <t t-call="web._assets_bootstrap"/>
         <link rel="stylesheet" type="text/scss" href="/web/static/src/scss/base_frontend.scss"/>
diff --git a/addons/web_editor/views/editor.xml b/addons/web_editor/views/editor.xml
index 207dddfa4cb..7b9e2ea258d 100644
--- a/addons/web_editor/views/editor.xml
+++ b/addons/web_editor/views/editor.xml
@@ -25,9 +25,9 @@
 
     <!-- odoo utils -->
 
-    <t t-call="web._assets_helpers">
-        <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/bootstrap_overridden.scss"/>
-    </t>
+    <t t-call="web._assets_helpers"/>
+    <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/bootstrap_overridden.scss"/>
+    <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
 
     <!-- integration -->
 
diff --git a/addons/website/views/assets.xml b/addons/website/views/assets.xml
index a5dbcd863e9..48925966575 100644
--- a/addons/website/views/assets.xml
+++ b/addons/website/views/assets.xml
@@ -117,9 +117,9 @@
 </template>
 
 <template id="website.assets_wysiwyg" name="Website Editor Assets (used in website editor)">
-    <t t-call="web._assets_helpers">
-        <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/bootstrap_overridden.scss"/>
-    </t>
+    <t t-call="web._assets_helpers"/>
+    <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/bootstrap_overridden.scss"/>
+    <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
     <link rel="stylesheet" type="text/scss" href="/website/static/src/scss/website.wysiwyg.scss"/>
     <link rel="stylesheet" type="text/scss" href="/website/static/src/scss/website.edit_mode.scss"/>
 
@@ -155,6 +155,7 @@
 
 <template id="website.assets_editor" name="Website Editor Assets (used in website editor)">
     <t t-call="web._assets_helpers"/>
+    <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
 
     <link rel="stylesheet" type="text/scss" href="/website/static/src/scss/website.editor.ui.scss"/>
     <link rel="stylesheet" type="text/scss" href="/website/static/src/scss/website.theme_install.scss"/>
diff --git a/addons/website_slides/views/assets.xml b/addons/website_slides/views/assets.xml
index 266cee25683..cad85aebadc 100644
--- a/addons/website_slides/views/assets.xml
+++ b/addons/website_slides/views/assets.xml
@@ -58,6 +58,7 @@
         <!-- Bundle (minimal) for embedded slide iframe -->
         <template id="website_slides.slide_embed_assets" name="Website slides embed assets">
             <t t-call="web._assets_helpers"/>
+            <link rel="stylesheet" type="text/scss" href="/web/static/lib/bootstrap/scss/_variables.scss"/>
             <t t-call="web._assets_bootstrap"/>
             <link rel="stylesheet" type="text/scss" href="/website_slides/static/src/scss/website_slides.scss" t-ignore="true"/>