diff --git a/src/Dock.Model/FactoryBase.Dockable.cs b/src/Dock.Model/FactoryBase.Dockable.cs
index b0b634c5..b5a9330b 100644
--- a/src/Dock.Model/FactoryBase.Dockable.cs
+++ b/src/Dock.Model/FactoryBase.Dockable.cs
@@ -755,7 +755,7 @@ private void UpdateIsEmpty(IDock dock)
 
         var newIsEmpty = dock.VisibleDockables == null
                          || dock.VisibleDockables?.Count == 0
-                         || dock.VisibleDockables!.All(x => x is IDock { IsEmpty: true } or IProportionalDockSplitter);
+                         || dock.VisibleDockables!.All(x => x is IDock { IsEmpty: true, IsCollapsable: true } or IProportionalDockSplitter);
 
         if (oldIsEmpty != newIsEmpty)
         {