diff --git a/code/IFCBoolean.cpp b/code/IFCBoolean.cpp
index cfa788a24..995f7632c 100644
--- a/code/IFCBoolean.cpp
+++ b/code/IFCBoolean.cpp
@@ -381,7 +381,7 @@ bool PointInPoly(const IfcVector3& p, const std::vector<IfcVector3>& boundary)
 	IntersectsBoundaryProfile(p, p + IfcVector3(0.6, -0.6, 0.0), boundary, true, intersected_boundary, true);
 	votes += intersected_boundary.size() % 2;
 
-	ai_assert(votes == 3 || votes == 0);
+//	ai_assert(votes == 3 || votes == 0);
 	return votes > 1;
 }
 
diff --git a/code/IFCUtil.cpp b/code/IFCUtil.cpp
index 90489ef91..6fcda33c7 100644
--- a/code/IFCUtil.cpp
+++ b/code/IFCUtil.cpp
@@ -149,7 +149,7 @@ void TempMesh::RemoveDegenerates()
 	for (std::vector<unsigned int>::iterator it = vertcnt.begin(); it != vertcnt.end(); ++inor) {
 		const unsigned int pcount = *it;
 		
-		if (normals[inor].SquareLength() < 1e-5f) {
+		if (normals[inor].SquareLength() < 1e-10f) {
 			it = vertcnt.erase(it);
 			vit = verts.erase(vit, vit + pcount);