diff --git a/Documentation/MANPAGE.md b/Documentation/MANPAGE.md
index d7321c2..b6ba8b3 100644
--- a/Documentation/MANPAGE.md
+++ b/Documentation/MANPAGE.md
@@ -354,6 +354,16 @@ You need root permissions to use `-suid`.
 #### -trace string
 Write execution trace to file. View the trace using "go tool trace FILE".
 
+#### -trezor
+With `-init`: Protect the masterkey using a SatoshiLabs Trezor instead of a password.
+
+This feature is disabled by default and must be enabled at compile time using:
+
+    ./build.bash -tags enable_trezor
+
+You can determine if your gocryptfs binary has Trezor support enabled checking
+if the `gocryptfs -version` output contains the string `enable_trezor`.
+
 #### -version
 Print version and exit. The output contains three fields separated by ";".
 Example: "gocryptfs v1.1.1-5-g75b776c; go-fuse 6b801d3; 2016-11-01 go1.7.3".
@@ -369,7 +379,7 @@ useful in regression testing.
 Use all-zero dummy master key. This options is only intended for
 automated testing as it does not provide any security.
 
-#### --
+#### \-\-
 Stop option parsing. Helpful when CIPHERDIR may start with a
 dash "-".