diff --git a/src/FillSpace.jsx b/src/FillSpace.jsx
index 91b8d8d..e81307b 100644
--- a/src/FillSpace.jsx
+++ b/src/FillSpace.jsx
@@ -442,7 +442,7 @@ class FillSpace extends Component {
       (viewportHeight || 0) > 0;
 
     const racewayBottom = Math.max(0, Number(racewayMarginBottom ?? RACEWAY_BOTTOM_MARGIN) || 0);
-    const racewayRightOffset = racewayRight != null ? racewayRight : -(RACEWAY_WIDTH - 8);
+    const racewayRightOffset = racewayRight != null ? racewayRight : 0;
 
     let thumbHeight = 0;
     let thumbTop = 0;