diff --git a/README.rst b/README.rst
index 884d5724..5d35fe66 100644
--- a/README.rst
+++ b/README.rst
@@ -399,4 +399,5 @@ comments and contribution to the design of the type-safe API and
 `Gregory Czajkowski <https://github.com/gcflymoto>`__ for implementing binary
 formatting. Thanks `Ruslan Baratov <https://github.com/ruslo>`__ for comprehensive
 `comparison of integer formatting algorithms <https://github.com/ruslo/int-dec-format-tests>`__
-and useful comments regarding performance.
+and useful comments regarding performance, `Boris Kaul <https://github.com/localvoid>`__ for
+[C++ counting digits benchmark](https://github.com/localvoid/cxx-benchmark-count-digits).