diff --git a/procio.cr b/procio.cr
index 4cabf7d..5d65712 100644
--- a/procio.cr
+++ b/procio.cr
@@ -19,6 +19,6 @@ end
 
 result.each do |comm, (r, w)|
   if r + w > 0
-    puts %(procio comm="#{comm}" read_bytes=#{r},write_bytes=#{w} #{time})
+    puts %(procio,comm="#{comm}" read_bytes=#{r},write_bytes=#{w} #{time})
   end
 end