diff --git a/doc/tomb.1 b/doc/tomb.1
index 1d94681..7acbcb9 100644
--- a/doc/tomb.1
+++ b/doc/tomb.1
@@ -30,8 +30,8 @@ harddisk and its key file on a USB stick.
 .IP "dig"
 Generates a file that can be used as a tomb and will occupy as much
 space as its desired initial size, the unlocked \fI.tomb\fR file can
-then be locked using a \fIkey\fR. It takes a mandatory option which is
-the \fI--size\fR in megabytes (MiB). Tombs are digged using
+then be locked using a \fIkey\fR. It takes a mandatory \fI-s\fR option which is
+the size in megabytes (MiB). Tombs are digged using
 low-quality random data (/dev/urandom).
 
 .B
@@ -127,7 +127,7 @@ key and the second and last argument the tomb file.
 .B
 .IP "resize"
 Increase the size of a tomb file to the amount specified by the
-\fI--size\fR option in megabytes (MiB). Full access to the tomb using
+\fI-s\fR option, which is the new size in megabytes (MiB). Full access to the tomb using
 a key (\fI-k\fR) and its password is requires. Tombs can only grow and
 can never be made smaller. This command makes use of the cryptsetup
 resize feature and the resize2fs command: its much more practical than
diff --git a/tomb b/tomb
index 901b165..426cce8 100755
--- a/tomb
+++ b/tomb
@@ -320,7 +320,7 @@ Syntax: tomb [options] command [arguments]
 Commands:
 
  // Creation:
- dig     create a new empty TOMB file of --size in MB
+ dig     create a new empty TOMB file of size -s in MB
  forge   create a new KEY file and set its password
  lock    installs a lock on a TOMB to use it with KEY
 
@@ -334,7 +334,7 @@ Commands:
 EOF
     if [ "$RESIZER" = 1 ]; then
 	cat <<EOF
- resize  resize a TOMB to a new --size (can only grow)
+ resize  resize a TOMB to a new size -s (can only grow)
 EOF
     fi
 cat <<EOF
@@ -1117,7 +1117,7 @@ dig_tomb() {
     # require the specification of the size of the tomb (-s) in MB
     tombsize="`option_value -s`"
 
-    [ $tombsize ] || die "Size argument missing, use --size"
+    [ $tombsize ] || die "Size argument missing, use -s"
 
     [[ $tombsize != <-> ]] && die "Size argument is not an integer"