1 files changed, 2 insertions, 0 deletions

diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 2a1f5a46543a..94cfefddf4db 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -65,6 +65,8 @@ struct callchain_param {
         enum chain_key          key;
 };
 
+extern struct callchain_param callchain_param;
+
 struct callchain_list {
         u64                     ip;
         struct map_symbol       ms;