diff --git a/src/Nazara/Widgets/BoxLayout.cpp b/src/Nazara/Widgets/BoxLayout.cpp
index 0ff473581..80f46988f 100644
--- a/src/Nazara/Widgets/BoxLayout.cpp
+++ b/src/Nazara/Widgets/BoxLayout.cpp
@@ -65,6 +65,7 @@ namespace Nz
 		Nz::Vector2f layoutSize = GetSize();
 		float maxLayoutSize = layoutSize[axis];
 		float availableSpace = maxLayoutSize - m_spacing * (widgetChildCount - 1);
+		float optimalSize = availableSpace / widgetChildCount;
 
 		// Handle size
 		ForEachWidgetChild([&](BaseWidget* child)
@@ -94,6 +95,8 @@ namespace Nz
 			else
 				m_state->solver.addConstraint({ (sizeVar >= maxLayoutSize) | kiwi::strength::medium });
 
+			m_state->solver.addConstraint({ (sizeVar >= optimalSize) | kiwi::strength::medium });
+
 			sizeSum = sizeSum + sizeVar;
 		});