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-rw-r--r--Completion/Unix/Command/_chown4
1 files changed, 2 insertions, 2 deletions
diff --git a/Completion/Unix/Command/_chown b/Completion/Unix/Command/_chown
index 7a7e5911c..71c21da32 100644
--- a/Completion/Unix/Command/_chown
+++ b/Completion/Unix/Command/_chown
@@ -32,8 +32,8 @@ _arguments -C -s "$args[@]" '*:files:->files' && ret=0
 case $state in
   owner)
     if [[ $service = chgrp ]] || compset -P '*[:.]'; then
-      if (( EGID && $+commands[groups] )); then  # except for root
-	_wanted groups expl 'group' compadd $(groups) && return 0
+      if (( EGID && $+commands[groups] && ! $+funcstack[(r)_sudo] )); then  # except for root
+       _wanted groups expl 'group' compadd $(groups) && return 0
       fi
       _groups && ret=0
     else