diff --git a/SEWorldGenPlugin/GUI/Controls/MyGuiControlRangedSlider.cs b/SEWorldGenPlugin/GUI/Controls/MyGuiControlRangedSlider.cs
index 9684413..0417dfa 100644
--- a/SEWorldGenPlugin/GUI/Controls/MyGuiControlRangedSlider.cs
+++ b/SEWorldGenPlugin/GUI/Controls/MyGuiControlRangedSlider.cs
@@ -285,7 +285,7 @@ public override MyGuiControlBase HandleInput()
                     float endX = Size.X - MyGuiConstants.SLIDER_INSIDE_OFFSET_X;
                     float centerY = Size.Y / 2;
 
-                    if(m_currentFocusThumb == null && m_maxThumb.GetBounds(GetPositionAbsoluteTopLeft()).Contains(mousePos) != ContainmentType.Disjoint)
+                    if(m_currentFocusThumb == null && m_maxThumb.GetBounds(GetPositionAbsoluteTopLeft()).Contains(mousePos) != ContainmentType.Disjoint && !(m_minThumb.CurrentValue == m_maxValue))
                     {
                         m_currentFocusThumb = m_maxThumb;
                         m_maxThumb.ForcusThumb();