diff --git a/interface/src/avatar/SkeletonRagdoll.h b/interface/src/avatar/SkeletonRagdoll.h
index f9f99395ac..ae9bec9116 100644
--- a/interface/src/avatar/SkeletonRagdoll.h
+++ b/interface/src/avatar/SkeletonRagdoll.h
@@ -33,7 +33,9 @@ public:
     virtual void initPoints();
     virtual void buildConstraints();
 
+protected:
     void updateMuscles();
+
 private:
     Model* _model;
     QVector<MuscleConstraint*> _muscleConstraints;