diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 6b543ba5b3b..b461dfdafcc 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -263,7 +263,7 @@ module ApplicationHelper
   end
 
   def application_logo_url
-    @application_logo_url ||= (mobile_view? && SiteSetting.mobile_logo_url) || SiteSetting.logo_url
+    @application_logo_url ||= (mobile_view? && SiteSetting.mobile_logo_url).presence || SiteSetting.logo_url
   end
 
   def login_path