diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index bb2e3f9..68f851e6 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -82,6 +82,7 @@
 struct source_line {
 	struct rb_node	node;
 	char		*path;
+	int		nr_pcnt;
 	struct source_line_percent p[1];
 };