diff --git a/ruby/lib/jam_ruby/models/artifact_update.rb b/ruby/lib/jam_ruby/models/artifact_update.rb
index d077df7b6..eb61b19e2 100644
--- a/ruby/lib/jam_ruby/models/artifact_update.rb
+++ b/ruby/lib/jam_ruby/models/artifact_update.rb
@@ -44,7 +44,7 @@ module JamRuby
     end
 
     def self.find_client_by_os(os, environment=DEFAULT_ENVIRONMENT)
-      ArtifactUpdate.find_by_product_and_environment("#{CLIENT_PREFIX}/#{os}", environment)
+      ArtifactUpdate.find_by_product_and_environment("#{CLIENT_PREFIX_MODERN}/#{os}", environment)
     end
 
     def determine_url