diff --git a/src/browser/base/content/ZenViewSplitter.mjs b/src/browser/base/content/ZenViewSplitter.mjs
index c98c40fd7..62e2604ed 100644
--- a/src/browser/base/content/ZenViewSplitter.mjs
+++ b/src/browser/base/content/ZenViewSplitter.mjs
@@ -55,7 +55,8 @@ var gZenViewSplitter = {
       }
       return;
     }
-    this._showSplitView(tab);
+    let lastTab = dataTab[dataTab.length - 1];
+    this._showSplitView(lastTab);
   },
 
   onLocationChange(browser) {