diff --git a/src/BulletCollision/BroadphaseCollision/btDbvtBroadphase.cpp b/src/BulletCollision/BroadphaseCollision/btDbvtBroadphase.cpp
index 69e9ee748..7b39dbdc0 100644
--- a/src/BulletCollision/BroadphaseCollision/btDbvtBroadphase.cpp
+++ b/src/BulletCollision/BroadphaseCollision/btDbvtBroadphase.cpp
@@ -247,7 +247,9 @@ void btDbvtBroadphase::rayTest(const btVector3& rayFrom, const btVector3& rayTo,
 	// instead of just a local.
 	int threadIndex = btGetCurrentThreadIndex();
 	btAlignedObjectArray<const btDbvtNode*> localStack;
-	if (threadIndex < m_rayTestStacks.size())
+	//todo(erwincoumans, "why do we get tsan issue here?")
+	if (0)//threadIndex < m_rayTestStacks.size())
+	//if (threadIndex < m_rayTestStacks.size())
 	{
 		// use per-thread preallocated stack if possible to avoid dynamic allocations
 		stack = &m_rayTestStacks[threadIndex];