diff --git a/shell-completion/bash/portablectl b/shell-completion/bash/portablectl
index b22bbd95d6..61a9610aa3 100644
--- a/shell-completion/bash/portablectl
+++ b/shell-completion/bash/portablectl
@@ -53,7 +53,7 @@ _portablectl() {
                 comps="default nonetwork strict trusted"
                 ;;
             --copy)
-                comps="copy symlink auto"
+                comps="copy symlink auto mixed"
                 ;;
             --host|-H)
                 comps=$(compgen -A hostname)