diff --git a/Fluent.Ribbon/Controls/RibbonToolBar.cs b/Fluent.Ribbon/Controls/RibbonToolBar.cs
index 652e5d2a7..7fc375a0d 100644
--- a/Fluent.Ribbon/Controls/RibbonToolBar.cs
+++ b/Fluent.Ribbon/Controls/RibbonToolBar.cs
@@ -334,6 +334,7 @@ private Size WrapPanelLayuot(Size availableSize, bool measure)
 
                 columnWidth = Math.Max(columnWidth, child.DesiredSize.Width);
                 currentheight += child.DesiredSize.Height;
+                resultHeight = Math.Max(resultHeight, currentheight);
             }
 
             return new Size(resultWidth + columnWidth, resultHeight);