diff --git a/libexec/rbenv b/libexec/rbenv
index b65ca112..a7c4cc5a 100755
--- a/libexec/rbenv
+++ b/libexec/rbenv
@@ -111,6 +111,10 @@ case "$command" in
   fi
 
   shift 1
-  exec "$command_path" "$@"
+  if [ "$1" = --help ]; then
+    exec rbenv-help "$command"
+  else
+    exec "$command_path" "$@"
+  fi
   ;;
 esac