diff --git a/cli/transmission-cli.1 b/cli/transmission-cli.1
index 5ae2f1dd4..8c6e4dc12 100644
--- a/cli/transmission-cli.1
+++ b/cli/transmission-cli.1
@@ -91,6 +91,13 @@ Where to save downloaded data.
 In addition to these options, sending
 .Nm
 a SIGHUP signal will contact the tracker for more peers.
+.Sh ENVIRONMENT
+.Bl -tag -width Fl
+.It Ev TRANSMISSION_HOME
+Sets the default config-dir.
+.It Ev http_proxy
+Sets the proxy to use for http tracker announces.
+.El
 .Sh FILES
 .Bl -tag -width Ds -compact
 .It ~/.config/transmission
diff --git a/gtk/transmission-gtk.1 b/gtk/transmission-gtk.1
index ea71aad0e..262a0548f 100644
--- a/gtk/transmission-gtk.1
+++ b/gtk/transmission-gtk.1
@@ -61,6 +61,8 @@ is already running, the torrents will be added to the running instance.
 .Bl -tag -width Fl
 .It Ev TRANSMISSION_HOME
 Sets the default config-dir.
+.It Ev http_proxy
+Sets the proxy to use for http tracker announces.  If set, this overrides the GNOME proxy preferences.
 .El
 .Sh FILES
 .Bl -tag -width Ds -compact