diff --git a/libexec/rbenv-init b/libexec/rbenv-init
index d16065f7..73aeadf1 100755
--- a/libexec/rbenv-init
+++ b/libexec/rbenv-init
@@ -74,7 +74,7 @@ echo 'rbenv rehash 2>/dev/null'
 commands=(`rbenv commands --sh`)
 IFS="|"
 cat <<EOS
-function rbenv {
+rbenv() {
   command="\$1"
   if [ "\$#" -gt 0 ]; then
     shift