diff --git a/app/views/layouts/_main_container.html.haml b/app/views/layouts/_main_container.html.haml
index bd4d39896..f307e1eba 100644
--- a/app/views/layouts/_main_container.html.haml
+++ b/app/views/layouts/_main_container.html.haml
@@ -1,5 +1,6 @@
 #main-container{ class: "col-xs-#{main_container_size}" }
   .row
+    = render partial: 'layouts/strike_banner'
     = render partial: 'layouts/outdated_browser_banner'
     = render partial: 'layouts/pre_maintenance'
   .row
diff --git a/app/views/layouts/_strike_banner.html.haml b/app/views/layouts/_strike_banner.html.haml
new file mode 100644
index 000000000..a585bb51e
--- /dev/null
+++ b/app/views/layouts/_strike_banner.html.haml
@@ -0,0 +1,8 @@
+#strike-banner.site-banner
+  .container
+    .site-banner-icon ⚠️
+    .site-banner-text
+      %strong
+        En raison d’une grève nationale interprofessionnelle, une partie des personnels ne travaille pas.
+      %br
+      Les délais de réponse aux questions techniques pourront être perturbés pendant les prochains jours.
diff --git a/app/views/layouts/application.html.haml b/app/views/layouts/application.html.haml
index 8eb3e4004..54f753b3f 100644
--- a/app/views/layouts/application.html.haml
+++ b/app/views/layouts/application.html.haml
@@ -26,8 +26,10 @@
 
   %body{ id: content_for(:page_id), class: browser.platform.ios? ? 'ios' : nil }
     .page-wrapper
+      = render partial: 'layouts/strike_banner'
       = render partial: "layouts/outdated_browser_banner"
       = render partial: 'layouts/pre_maintenance'
+
       - if staging?
         #beta
           Env Test