diff --git a/static/templates/settings/organization_profile_admin.hbs b/static/templates/settings/organization_profile_admin.hbs
index 09444c9ad3..ce3da5f49a 100644
--- a/static/templates/settings/organization_profile_admin.hbs
+++ b/static/templates/settings/organization_profile_admin.hbs
@@ -61,7 +61,7 @@
             {{> upgrade_tip_widget }}
         </div>
 
-        <p>{{t "A wide image for the upper left corner of the app." }}</p>
+        <p>{{t "A wide image (200×25 pixels) for the upper left corner of the app." }}</p>
         <div class="realm-logo-group">
             <div class="realm-logo-block realm-logo-section">
                 <h5 class="realm-logo-title">{{t 'Day logo' }}</h5>