diff --git a/src/org/jmc/models/Registry.java b/src/org/jmc/models/Registry.java
index 2430509..a47f71c 100644
--- a/src/org/jmc/models/Registry.java
+++ b/src/org/jmc/models/Registry.java
@@ -137,7 +137,7 @@ private Transform getElemTrans(ModelElement element) {
 		}
 		float scale = 1;
 		if (rot.rescale) {
-			scale = (float) (0.5-Math.abs(Math.cos(Math.toRadians(2*rot.angle)))*0.5+1);
+			scale = (float) (1f / Math.cos(Math.toRadians(Math.abs(rot.angle))));
 		}
 		switch (rot.axis) {
 		case "x":