diff --git a/lib/browser/device/kindle_fire.rb b/lib/browser/device/kindle_fire.rb
index 10ee07b1..d65e93ec 100644
--- a/lib/browser/device/kindle_fire.rb
+++ b/lib/browser/device/kindle_fire.rb
@@ -12,7 +12,7 @@ def name
       end
 
       def match?
-        ua.match?(/Kindle Fire|KFTT/)
+        ua.match?(%r{Kindle Fire|; [^;)]+ Build/.*\bSilk/[0-9._-]+\b})
       end
     end
   end