diff --git a/Models/Leg39/leg39.osim b/Models/Leg39/leg39.osim
index 96145f5..944269b 100644
--- a/Models/Leg39/leg39.osim
+++ b/Models/Leg39/leg39.osim
@@ -175,7 +175,7 @@
 								<color>1 1 1</color>
 							</Appearance>
 							<!--Name of geometry file.-->
-							<mesh_file>fibula_R.vtp</mesh_file>
+							<mesh_file>fibula_r.vtp</mesh_file>
 						</Mesh>
 					</attached_geometry>
 					<!--Set of wrap objects fixed to this body that GeometryPaths can wrap over.This property used to be a member of Body but was moved up with the introduction of Frames.-->