diff --git a/src/Add-on/CheckHoles.ts b/src/Add-on/CheckHoles.ts
index ba05e364d..ec9e2453b 100644
--- a/src/Add-on/CheckHoles.ts
+++ b/src/Add-on/CheckHoles.ts
@@ -144,7 +144,7 @@ export async function InterferenceCheck(brs: Board[])
                 tkHoleFidSet.add((ds[0].Object as CylinderHole).FId);
         }
 
-        let ids = fb.search(box.min.x - 500, box.min.z - 500, box.max.x + 500, box.max.z + 500);
+        let ids = fb.search(box.min.x - 500, box.min.z - 500, box.max.x + 500, box.max.z + 500, (j) => j > i);
 
         for (let j of ids)
         {