diff --git a/completions/shadow b/completions/shadow
index 868cea31..058c1397 100644
--- a/completions/shadow
+++ b/completions/shadow
@@ -316,6 +316,7 @@ complete -g groupdel
 have newgrp &&
 _newgrp()
 {
+    local cur
     COMPREPLY=()
     _get_comp_words_by_ref cur