diff --git a/Assets/Cryville.Common/Unity/UI/SingleLayoutGroup.cs b/Assets/Cryville.Common/Unity/UI/SingleLayoutGroup.cs
index 086cb07..dcde082 100644
--- a/Assets/Cryville.Common/Unity/UI/SingleLayoutGroup.cs
+++ b/Assets/Cryville.Common/Unity/UI/SingleLayoutGroup.cs
@@ -32,6 +32,7 @@ namespace Cryville.Common.Unity.UI {
 		public override void SetLayoutVertical() { SetChildrenAlongAxis(1); }
 
 		protected void CalcAlongAxis(int axis) {
+			if (rectChildren.Count == 0) return;
 			float combinedPadding = (axis == 0) ? padding.horizontal : padding.vertical;
 			bool controlSize = (axis == 0) ? m_ChildControlWidth : m_ChildControlHeight;
 			bool useScale = (axis == 0) ? m_ChildScaleWidth : m_ChildScaleHeight;
@@ -55,6 +56,7 @@ namespace Cryville.Common.Unity.UI {
 		}
 
 		protected void SetChildrenAlongAxis(int axis) {
+			if (rectChildren.Count == 0) return;
 			float size = rectTransform.rect.size[axis];
 			bool controlSize = (axis == 0) ? m_ChildControlWidth : m_ChildControlHeight;
 			bool useScale = (axis == 0) ? m_ChildScaleWidth : m_ChildScaleHeight;