diff --git a/emain/emain-tabview.ts b/emain/emain-tabview.ts
index 9f13278f4..2b53e0a0a 100644
--- a/emain/emain-tabview.ts
+++ b/emain/emain-tabview.ts
@@ -263,7 +263,7 @@ export function ensureHotSpareTab(fullConfig: FullConfigType) {
 }
 
 export function getSpareTab(fullConfig: FullConfigType): WaveTabView {
-    setTimeout(ensureHotSpareTab, 500);
+    setTimeout(() => ensureHotSpareTab(fullConfig), 500);
     if (HotSpareTab != null) {
         const rtn = HotSpareTab;
         HotSpareTab = null;