diff --git a/dasdfmt/dasdfmt.8 b/dasdfmt/dasdfmt.8
index 82a5fd9e..e41f289c 100644
--- a/dasdfmt/dasdfmt.8
+++ b/dasdfmt/dasdfmt.8
@@ -197,9 +197,8 @@ e.g. -l 'a@b\\$c#' to get A@B$C#
 
 .TP
 \fB-k\fR or \fB--keep_volser\fR
-Keeps the Volume Serial Number, when writing the Volume Label. This is
-useful, if the Serial Number has been written with a VM Tool and should not
-be overwritten.
+Keeps the Volume Serial Number when writing the Volume Label. This is useful if
+the volume already has a Serial Number that should not be overwritten.
 .br
 
 .SH SEE ALSO