diff --git a/libraries/avatars/src/AvatarData.h b/libraries/avatars/src/AvatarData.h
index aa21b6d9c4..88c5a53c9a 100755
--- a/libraries/avatars/src/AvatarData.h
+++ b/libraries/avatars/src/AvatarData.h
@@ -129,15 +129,6 @@ public:
 
     virtual const glm::vec3& getVelocity() const { return vec3Zero; }
 
-    /// Checks for penetration between the described sphere and the avatar.
-    /// \param penetratorCenter the center of the penetration test sphere
-    /// \param penetratorRadius the radius of the penetration test sphere
-    /// \param penetration[out] the vector in which to store the penetration
-    /// \param skeletonSkipIndex if not -1, the index of a joint to skip (along with its descendents) in the skeleton model
-    /// \return whether or not the sphere penetrated
-    virtual bool findSpherePenetration(const glm::vec3& penetratorCenter, float penetratorRadius,
-        glm::vec3& penetration, int skeletonSkipIndex = -1) const { return false; }
-
     virtual bool findSphereCollisionWithHands(const glm::vec3& sphereCenter, float sphereRadius, CollisionInfo& collision) {
         return false;
     }