diff --git a/bin/auto_increase_number b/bin/auto_increase_number
index a9607b5..f11cc0a 100755
--- a/bin/auto_increase_number
+++ b/bin/auto_increase_number
@@ -1,6 +1,9 @@
 #!/bin/bash
 
 ################################################
+#
+# Usage: auto_increase_number [--dryrun]
+#
 # This scripts gives you a consistent increment.
 # This can't guarantee atomiocity, its not a DB
 # its actually smaller and less reliable than sqlite :)