diff --git a/doc/man-putt.but b/doc/man-putt.but
index d765597f..fb600677 100644
--- a/doc/man-putt.but
+++ b/doc/man-putt.but
@@ -210,7 +210,7 @@ pseudo-terminal at the server end.
 
 \dt \cw{\-1}, \cw{\-2}
 
-\dd Select SSH protocol v1 or v2.
+\dd Select SSH protocol version 1 or 2.
 
 \dt \cw{\-i} \e{keyfile}