diff --git a/web/app/brep/operations/boolean.js b/web/app/brep/operations/boolean.js
index f4d3933a..ad135bf9 100644
--- a/web/app/brep/operations/boolean.js
+++ b/web/app/brep/operations/boolean.js
@@ -425,6 +425,8 @@ function split(nodes, result, onCurve, direction) {
     edge.halfEdge2 = halfEdgeSameDir;
     halfEdgeNegativeDir.edge = edge;
     halfEdgeSameDir.edge = edge;
+    
+    //check for corner case when to faces only intersects in edges
     if (!containsEdges(result, edge)) {
       result.push(edge);
     }