1 files changed, 2 insertions, 1 deletions

diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 9b29f085aede..3c0c2724f82c 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -13,7 +13,7 @@ struct thread {
                 struct rb_node   rb_node;
                 struct list_head node;
         };
-        struct map_groups       mg;
+        struct map_groups       *mg;
         pid_t                   pid_; /* Not all tools update this */
         pid_t                   tid;
         pid_t                   ppid;
@@ -30,6 +30,7 @@ struct machine;
 struct comm;
 
 struct thread *thread__new(pid_t pid, pid_t tid);
+int thread__init_map_groups(struct thread *thread, struct machine *machine);
 void thread__delete(struct thread *thread);
 static inline void thread__exited(struct thread *thread)
 {