diff --git a/app/views/layouts/commencer/_no_procedure.html.haml b/app/views/layouts/commencer/_no_procedure.html.haml
index 34c054883..15a7c59a6 100644
--- a/app/views/layouts/commencer/_no_procedure.html.haml
+++ b/app/views/layouts/commencer/_no_procedure.html.haml
@@ -1,5 +1,5 @@
 .no-procedure
-  = image_tag "landing/hero/dematerialiser.svg", class: "paperless-logo"
+  = image_tag "landing/hero/dematerialiser.svg", class: "paperless-logo", alt: "moins de papier"
   .baseline.center
     %h3 Un outil simple
     %p
diff --git a/app/views/root/landing.html.haml b/app/views/root/landing.html.haml
index 72bd6b341..3c72e717c 100644
--- a/app/views/root/landing.html.haml
+++ b/app/views/root/landing.html.haml
@@ -14,13 +14,13 @@
             %em.hero-tagline-em en ligne
 
         .hero-illustration
-          %img{ :src => image_url("landing/hero/dematerialiser.svg"), alt: "" }
+          %img{ :src => image_url("landing/hero/dematerialiser.svg"), alt: "dématérialisez" }
 
   .landing-panel.usagers-panel
     .container
       .role-panel-wrapper
         .role-panel-30.role-usagers-image
-          %img.role-image{ :src => image_url("landing/roles/usagers.svg"), alt: "" }
+          %img.role-image{ :src => image_url("landing/roles/usagers.svg"), alt: "usager" }
 
         .role-panel-70
           %h1.role-panel-title Vous souhaitez effectuer une demande auprès d'une administration ?