diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 2fd47b257..60f4b67ae 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -52,6 +52,8 @@ Philippe Liard
 Ben Gertzfield
 Fredrik Roubert
 George Yakovlev
+Gilles Vollant
+    -- Contributed towards thread synchronization solutions.
 Nico Weber
 Yoshifumi Inoue