diff --git a/source/blender/nodes/geometry/nodes/node_geo_extrude_mesh.cc b/source/blender/nodes/geometry/nodes/node_geo_extrude_mesh.cc
index 42ee0e832d9..d607e95f853 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_extrude_mesh.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_extrude_mesh.cc
@@ -129,6 +129,10 @@ static void expand_mesh(Mesh &mesh,
     CustomData_realloc(&mesh.vdata, old_verts_num, mesh.totvert);
   }
   if (edge_expand != 0) {
+    if (mesh.totedge == 0) {
+      mesh.attributes_for_write().add(
+          ".edge_verts", ATTR_DOMAIN_EDGE, CD_PROP_INT32_2D, bke::AttributeInitConstruct());
+    }
     CustomData_free_layers(&mesh.edata, CD_BWEIGHT, mesh.totedge);
     CustomData_free_layers(&mesh.edata, CD_FREESTYLE_EDGE, mesh.totedge);
     const int old_edges_num = mesh.totedge;