diff --git a/website/docs/commands/force-unlock.html.markdown b/website/docs/commands/force-unlock.html.markdown
index 2cee20552c..53c9ca0d0a 100644
--- a/website/docs/commands/force-unlock.html.markdown
+++ b/website/docs/commands/force-unlock.html.markdown
@@ -17,7 +17,7 @@ process.
 
 ## Usage
 
-Usage: terraform force-unlock [DIR]
+Usage: terraform force-unlock LOCK_ID [DIR]
 
 Manually unlock the state for the defined configuration.