diff --git a/flowermd/modules/welding/__init__.py b/flowermd/modules/welding/__init__.py
index da3f9989..bb073947 100644
--- a/flowermd/modules/welding/__init__.py
+++ b/flowermd/modules/welding/__init__.py
@@ -1,2 +1,3 @@
 """Welding module for FlowerMD."""
+from .utils import add_void_particles
 from .welding import Interface, SlabSimulation, WeldSimulation