diff --git a/README.md b/README.md
index b72a9d501..7ffbe8d0d 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,7 @@ Requirements
 
 Core:
 * C++ compiler
+* Boost C++ Libraries (optional, headers only)
 
 Backend specific:
 * Firebird client library X.Y