diff --git a/core/src/net/sf/openrocket/rocketcomponent/Transition.java b/core/src/net/sf/openrocket/rocketcomponent/Transition.java
index c9f0f9b16..8c819e276 100644
--- a/core/src/net/sf/openrocket/rocketcomponent/Transition.java
+++ b/core/src/net/sf/openrocket/rocketcomponent/Transition.java
@@ -479,7 +479,7 @@ public class Transition extends SymmetricComponent implements InsideColorCompone
 	public double getRadius(double x) {
 		if ( x < 0 )
 			return getForeRadius();
-		if ( x > length)
+		if ( x >= length)
 			return getAftRadius();
 
 		double r1 = getForeRadius();