diff --git a/bm.py b/bm.py
index 151aa16..6d2cb54 100755
--- a/bm.py
+++ b/bm.py
@@ -3,12 +3,12 @@
 """
 Simple command line browser independant bookmark utility
 
-Usage: bm add    URL TAG...
-       bm list   [-f FMT] [-w] [-v] [TAG]...
-       bm tags   [-f FMT] [-w] [URL]...
-       bm remove URL TAG...
-       bm delete URL...
-       bm import [-f FMT] FILE...
+Usage: bm [-d DB] add    URL TAG...
+       bm [-d DB] list   [-f FMT] [-w] [-v] [TAG]...
+       bm [-d DB] tags   [-f FMT] [-w] [URL]...
+       bm [-d DB] remove URL TAG...
+       bm [-d DB] delete URL...
+       bm [-d DB] import [-f FMT] FILE...
 
 Commands:
     add           Tag a URL
@@ -25,6 +25,7 @@
     TAG     A tag
     FILE    Path to a file for import
     GROUP   A set of tags; Using a group sets all the tags within that group
+    DB      File database
 
 Options:
     -h, --help          Print this help and exit