diff --git a/misc/core.func b/misc/core.func
index a806dfb..3819069 100644
--- a/misc/core.func
+++ b/misc/core.func
@@ -1,6 +1,7 @@
 # Copyright (c) 2021-2025 community-scripts ORG
 # License: MIT | https://raw.githubusercontent.com/community-scripts/ProxmoxVED/main/LICENSE
 
+: "${SPINNER_PID:=}"
 [[ -n "${_CORE_FUNC_LOADED:-}" ]] && return
 _CORE_FUNC_LOADED=1