diff --git a/README b/README
index dba8354..6a9c2f3 100644
--- a/README
+++ b/README
@@ -41,7 +41,7 @@ the device to a Network Virtual Terminal (NVT).
   is started (command-line options).
 
   E.g.
-  ./ttynvt -M 199 -m 6 -n ttyNVT0 -s 169.254.1.1:5020
+  ./ttynvt -M 199 -m 6 -n ttyNVT0 -S 169.254.1.1:5020
 
   To get a list of all command-line options:
   ./ttynvt --help