diff --git a/interface/src/renderer/Model.cpp b/interface/src/renderer/Model.cpp
index c9c69a7a87..3f3f432ebd 100644
--- a/interface/src/renderer/Model.cpp
+++ b/interface/src/renderer/Model.cpp
@@ -555,7 +555,7 @@ bool Model::findSpherePenetration(const glm::vec3& penetratorCenter, float penet
                 } while (ancestorIndex != -1);
             }
             start = extractTranslation(_jointStates[joint.parentIndex].transform);
-            startRadius = geometry.joints[joint.parentIndex].boneRadius;
+            startRadius = geometry.joints[joint.parentIndex].boneRadius * radiusScale;
         }
         if (findSphereCapsulePenetration(relativeCenter, penetratorRadius, start, end,
                 (startRadius + endRadius) / 2.0f, bonePenetration)) {