diff --git a/Opencode/scripts/maintenance.sh b/Opencode/scripts/maintenance.sh
index 5c81f2f..ae4817f 100644
--- a/Opencode/scripts/maintenance.sh
+++ b/Opencode/scripts/maintenance.sh
@@ -112,7 +112,8 @@ log_info "Cache systeme nettoye"
 log_info "Verification de l'integrite du systeme..."
 
 # Verifier le filesystem (sans corriger, juste signaler)
-disk_errors=$(dmesg | grep -c "EXT4-fs error" 2>/dev/null || echo "0")
+disk_errors=$(dmesg 2>/dev/null | grep -c "EXT4-fs error" || true)
+disk_errors=${disk_errors:-0}
 if [ "$disk_errors" -gt 0 ]; then
     log_warn "  $disk_errors erreur(s) filesystem detectee(s) dans dmesg!"
 fi