diff --git a/cmuxTests/WorkspaceContentViewVisibilityTests.swift b/cmuxTests/WorkspaceContentViewVisibilityTests.swift
index f2f4e856af08..61c22b3ee865 100644
--- a/cmuxTests/WorkspaceContentViewVisibilityTests.swift
+++ b/cmuxTests/WorkspaceContentViewVisibilityTests.swift
@@ -264,6 +264,22 @@ final class WorkspaceContentViewVisibilityTests {
         #expect(counts.contentViewBody > 0)
         #expect(counts.workspaceContentBody > 0)
         #expect(counts.verticalTabsSidebarBody > 0)
+        // Setup work keeps publishing after the first render: the selected
+        // workspace's directory reaches the file explorer a few runloop turns
+        // later, and that store change re-evaluates ContentView. On a loaded
+        // runner it landed inside the toggle's window (PR run 36016958288 logged
+        // "ContentView: _fileExplorerStore changed."), so measure only once the
+        // window has gone quiet.
+        var quietRounds = 0
+        for _ in 0..<100 where quietRounds < 3 {
+            counts.reset()
+            await Self.drainMainRunLoop(for: window)
+            let settled = counts.contentViewBody == 0
+                && counts.workspaceContentBody == 0
+                && counts.verticalTabsSidebarBody == 0
+            quietRounds = settled ? quietRounds + 1 : 0
+        }
+        try #require(quietRounds >= 3, "The window must stop re-evaluating chrome bodies before the toggle is measured")
         counts.reset()
         counts.isMeasuringInvalidations = true
         defer { counts.isMeasuringInvalidations = false }