diff --git a/README b/README
index 4b4f219..57323b8 100644
--- a/README
+++ b/README
@@ -38,6 +38,7 @@ For the latest version, see https://github.com/jorisvr/SoftFM
 
 The Osmocom RTL-SDR library must be installed before you can build SoftFM.
 See http://sdr.osmocom.org/trac/wiki/rtl-sdr for more information.
+SoftFM has been tested successfully with RTL-SDR 0.5.3.
 
 To install SoftFM, download and unpack the source code and go to the
 top level directory. Then do like this: