diff --git a/doc/tomb.1 b/doc/tomb.1
index f3c0ca7..e29567e 100644
--- a/doc/tomb.1
+++ b/doc/tomb.1
@@ -274,7 +274,7 @@ When digging or resizing a tomb, this option must be used to specify
 the \fIsize\fR of the new file to be created. Units are megabytes (MiB).
 .B
 .IP "-g"
-Tell tomb to use a asymmetric GnuPG key encryption instead of a
+Tell tomb to use an asymmetric GnuPG key encryption instead of a
 symmetric passphrase to protect a tomb key. This option can be
 followed by \fI-r\fR when the command needs to specify recipient(s).
 .B