diff --git a/README.txt b/README.txt
index 2180fba..f9756ed 100644
--- a/README.txt
+++ b/README.txt
@@ -176,7 +176,7 @@ Resampler libraries supported
 Name           Flags required        Notes
 ----           --------------        -----   
 
-libsamplerate  -DHAVE_LIBSAMPLERATE  GPL.
+libsamplerate  -DHAVE_LIBSAMPLERATE  GPL until v0.1.8, BSD for v0.1.9 and later.
 
 libresample    -DHAVE_LIBRESAMPLE    LGPL.