diff --git a/swing/src/net/sf/openrocket/gui/figureelements/RocketInfo.java b/swing/src/net/sf/openrocket/gui/figureelements/RocketInfo.java
index d3876b181..763f759c8 100644
--- a/swing/src/net/sf/openrocket/gui/figureelements/RocketInfo.java
+++ b/swing/src/net/sf/openrocket/gui/figureelements/RocketInfo.java
@@ -182,7 +182,7 @@ public class RocketInfo implements FigureElement {
 	private void drawStabilityInfo() {
 		String at;
 		//// at M=
-		at = trans.get("RocketInfo.at")+UnitGroup.UNITS_COEFFICIENT.getDefaultUnit().toStringUnit(Application.getPreferences().getDefaultMach());
+		at = trans.get("RocketInfo.at")+UnitGroup.UNITS_COEFFICIENT.getDefaultUnit().toStringUnit(this.mach);
 		if (!Double.isNaN(aoa)) {
 			at += " "+ALPHA+"=" + UnitGroup.UNITS_ANGLE.getDefaultUnit().toStringUnit(aoa);
 		}