diff --git a/src/BulletCollision/BroadphaseCollision/btMultiSapBroadphase.cpp b/src/BulletCollision/BroadphaseCollision/btMultiSapBroadphase.cpp
index a75689c99..2799b2248 100644
--- a/src/BulletCollision/BroadphaseCollision/btMultiSapBroadphase.cpp
+++ b/src/BulletCollision/BroadphaseCollision/btMultiSapBroadphase.cpp
@@ -80,7 +80,7 @@ btBroadphaseProxy*	btMultiSapBroadphase::createProxy(  const btVector3& aabbMin,
 	simpleProxy->m_multiSapParentProxy = proxy;
 
 	mem = btAlignedAlloc(sizeof(btChildProxy),16);
-	btChildProxy* childProxyRef = new btChildProxy();
+	btChildProxy* childProxyRef = new(mem) btChildProxy();
 	childProxyRef->m_proxy = simpleProxy;
 	childProxyRef->m_childBroadphase = m_simpleBroadphase;
 	proxy->m_childProxies.push_back(childProxyRef);
diff --git a/src/BulletCollision/BroadphaseCollision/btOverlappingPairCache.h b/src/BulletCollision/BroadphaseCollision/btOverlappingPairCache.h
index 8930dbaa9..c3a9339e0 100644
--- a/src/BulletCollision/BroadphaseCollision/btOverlappingPairCache.h
+++ b/src/BulletCollision/BroadphaseCollision/btOverlappingPairCache.h
@@ -177,7 +177,7 @@ private:
 	
 	SIMD_FORCE_INLINE	unsigned int getHash(unsigned int proxyId1, unsigned int proxyId2)
 	{
-		int key = ((unsigned int)proxyId1) | (((unsigned int)proxyId1) <<16);
+		int key = ((unsigned int)proxyId1) | (((unsigned int)proxyId2) <<16);
 		// Thomas Wang's hash
 
 		key += ~(key << 15);