diff --git a/README b/README
index 3729385a3..4b0ec5e1a 100644
--- a/README
+++ b/README
@@ -142,10 +142,12 @@ $ sudo ldconfig
 
 $ export RTLSDR_DRIVER=1
 
-In order to compile the RTLSDR adapter you should also provide the path to the gr-osmosdr source code using:
+- In order to compile the RTLSDR adapter you should also provide the path to the gr-osmosdr source code using:
 
 $ export OSMOSDR_ROOT=/path/to/gr-osmosdr
 
+The default will be OSMOSDR_ROOT=/usr/local
+
 (in order to disable the Rtlsdr_Signal_Source compilation, you should remove the RTLSDR_DRIVER variable and build again GNSS-SDR)