diff --git a/libexec/rbenv-local b/libexec/rbenv-local
index d261564c..b9312fd1 100755
--- a/libexec/rbenv-local
+++ b/libexec/rbenv-local
@@ -5,7 +5,7 @@ set -e
 # Provide rbenv completions
 if [ "$1" = "--complete" ]; then
   shift
-  echo system
+  echo system --unset
   exec rbenv-versions --bare
 fi