diff --git a/roles/i3/files/newmail b/roles/i3/files/newmail
index 49dc9b3..50ade4f 100755
--- a/roles/i3/files/newmail
+++ b/roles/i3/files/newmail
@@ -8,7 +8,7 @@ if [ -z "$LABEL" ]; then
     LABEL='New: '
 fi
 
-nb_new=$(find "$MAILBOX_DIR" -type d -name new -not -empty -execdir ls '{}' \+ | wc -l)
+nb_new=$(find "${MAILBOX_DIR[@]}" -type d -name new -not -empty -execdir ls '{}' \+ | wc -l)
 
 if [ "$nb_new" -gt 0 ]; then
     echo "${LABEL}${nb_new}"