diff --git a/scripts/install-multi-user.sh b/scripts/install-multi-user.sh
index ec82e0560..f149ea0d7 100644
--- a/scripts/install-multi-user.sh
+++ b/scripts/install-multi-user.sh
@@ -575,7 +575,7 @@ EOF
     # to extract _just_ the user's note, instead it is prefixed with
     # some plist junk. This was causing the user note to always be set,
     # even if there was no reason for it.
-    if ! poly_user_note_get "$username" | grep -q "Nix build user $coreid"; then
+    if poly_user_note_get "$username" | grep -q "Nix build user $coreid"; then
         row "              Note" "Nix build user $coreid"
     else
         poly_user_note_set "$username" "Nix build user $coreid"