diff --git a/redis-sampler.rb b/redis-sampler.rb
index 34d7cea..353d1a9 100755
--- a/redis-sampler.rb
+++ b/redis-sampler.rb
@@ -212,7 +212,7 @@ def stats
             render_power_table(@list_elesize)
         end
         if @set_card.length != 0
-            render_freq_table("Sets, number of elements",@zset_card)
+            render_freq_table("Sets, number of elements",@set_card)
             render_avg(@set_card)
             render_power_table(@set_card)
             render_freq_table("Sets, size of elements",@set_elesize)