diff --git a/README b/README
index 352a55bf..e116e1a1 100644
--- a/README
+++ b/README
@@ -36,6 +36,11 @@ In addition, you must have pg_config in $PATH.
 The current version of pg_rman is compatible with PostgreSQL 9.3 and
 upper versions.
 
+Platforms
+---------
+
+pg_rman has been tested on Linux and Unix-based platforms.
+
 Documentation
 -------------