diff --git a/lib/ulib/debian b/lib/ulib/debian
index 8921acf..c53d020 100644
--- a/lib/ulib/debian
+++ b/lib/ulib/debian
@@ -14,7 +14,8 @@ function pkg_check() {
     # Vérifier que les packages sont installés sur le système
     local pkg status
     for pkg in "$@"; do
-        status="$(LANG=C dpkg -s "$pkg" 2>/dev/null | grep '^Status:')" || return 1
+        LANG=C setx status=dpkg -s "$pkg" 2>/dev/null || return 1
+        setx status=grep '^Status:' <<<"$status"
         [[ "$status" == *not-installed* ]] && return 1
         [[ "$status" == *deinstall* ]] && return 1
     done