diff --git a/sbin/hammer/hammer.8 b/sbin/hammer/hammer.8
index 724630b..c6d8178 100644
--- a/sbin/hammer/hammer.8
+++ b/sbin/hammer/hammer.8
@@ -324,8 +324,29 @@ Generate the top 32 bits of a
 Shows extended information about all the mounted
 .Nm HAMMER
 file systems.
-At the moment volume identification, big-blocks information, space and
-and pseudo-filesystem (PFS) details are shown.
+The information is divided in sections:
+.Bl -tag
+.It Volume identification
+Shows HAMMER filesystem label, number of volumes it is made up of, 
+FSID and HAMMER version being used.
+.It Big block information
+Print out the current space information in big blocks.
+Currently Total, Used, Reserved and Free are shown.
+.It Space information
+Shows the space information in human readable format.
+Currently Total, Used, Reserved and Free are shown.
+.It PFS Information
+Gathers basic information about the PFSs currently present on a
+HAMMER filesystem and prints it out on the screen.
+.Pp
+The PFS-Id column indicates the ID of the PFS, where PFS id 0
+is the root one.
+.Pp
+The Snaps column shows the current snapshot count on the PFS.
+.Pp
+The Mounted-on column shows the mount point of where the PFS is
+mounted, if any.
+.El
 .\" ==== cleanup ====
 .It Cm cleanup Op Ar filesystem ...
 This is a meta-command which executes snapshot, prune, rebalance and reblock