diff --git a/lib/ducksboard/counter.rb b/lib/ducksboard/counter.rb
index e6cb132..d229e58 100644
--- a/lib/ducksboard/counter.rb
+++ b/lib/ducksboard/counter.rb
@@ -1,4 +1,11 @@
 module Ducksboard
   class Counter < Widget
+    def delta
+      @data[:delta]
+    end
+
+    def delta=(val)
+      @data[:delta] = val
+    end
   end
 end