1 files changed, 1 insertions, 1 deletions
diff --git a/lib/pp.rb b/lib/pp.rb
index 7c4ba0e672..5e5fd06cae 100644
--- a/lib/pp.rb
+++ b/lib/pp.rb
@@ -423,7 +423,7 @@ end
 class Data # :nodoc:
   def pretty_print(q) # :nodoc:
     q.group(1, sprintf("#<data %s", PP.mcall(self, Kernel, :class).name), '>') {
-      q.seplist(PP.mcall(self, Data, :members), lambda { q.text "," }) {|member|
+      q.seplist(PP.mcall(self, Kernel, :class).members, lambda { q.text "," }) {|member|
         q.breakable
         q.text member.to_s
         q.text '='