diff --git a/swing/src/net/sf/openrocket/gui/configdialog/TubeFinSetConfig.java b/swing/src/net/sf/openrocket/gui/configdialog/TubeFinSetConfig.java
index da1f165bf..66a29be0c 100644
--- a/swing/src/net/sf/openrocket/gui/configdialog/TubeFinSetConfig.java
+++ b/swing/src/net/sf/openrocket/gui/configdialog/TubeFinSetConfig.java
@@ -147,8 +147,8 @@ public class TubeFinSetConfig extends RocketComponentConfig {
 			}
 		});
 
-		panel.add(new UnitSelector(m), "growx");
-		panel.add(new BasicSlider(m.getSliderModel(
+		panel.add(new UnitSelector(axialOffsetModel), "growx");
+		panel.add(new BasicSlider(axialOffsetModel.getSliderModel(
 				new DoubleModel(component.getParent(), "Length", -1.0, UnitGroup.UNITS_NONE),
 				new DoubleModel(component.getParent(), "Length"))),
 				"w 100lp, wrap para");