diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 2ddc00d1c464..af14eb46c2b6 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -34,7 +34,6 @@ extern struct sort_entry sort_dso_to;
 extern struct sort_entry sort_sym_from;
 extern struct sort_entry sort_sym_to;
 extern struct sort_entry sort_srcline;
-extern enum sort_type sort__first_dimension;
 extern const char default_mem_sort_order[];
 
 struct res_sample {
@@ -295,7 +294,6 @@ struct block_hist {
 };
 
 extern struct sort_entry sort_thread;
-extern struct list_head hist_entry__sort_list;
 
 struct evlist;
 struct tep_handle;