1 files changed, 2 insertions, 0 deletions

diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 0f99f394d8e0..6121e24fefc0 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -265,4 +265,6 @@ bool is_power_of_2(unsigned long n)
         return (n != 0 && ((n & (n - 1)) == 0));
 }
 
+size_t hex_width(u64 v);
+
 #endif