diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index ed550bf..6335965 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -81,6 +81,7 @@
 int perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
 
 u64 perf_header__sample_type(struct perf_header *header);
+bool perf_header__sample_id_all(const struct perf_header *header);
 struct perf_event_attr *
 perf_header__find_attr(u64 id, struct perf_header *header);
 void perf_header__set_feat(struct perf_header *self, int feat);