diff --git a/types/openjscad/index.d.ts b/types/openjscad/index.d.ts
index c6cae5d5cc..56026967a2 100644
--- a/types/openjscad/index.d.ts
+++ b/types/openjscad/index.d.ts
@@ -5,11 +5,11 @@
 
 /// <reference types="three" />
 
-declare namespace THREE {
+declare module "three" {
     var CSG: {
         fromCSG: (csg: CSG, defaultColor: any) => {
-            colorMesh: Mesh;
-            wireframe: Mesh;
+            colorMesh: THREE.Mesh;
+            wireframe: THREE.Mesh;
             boundLen: number;
         };
         getGeometryVertex: (geometry: any, vertex_position: any) => number;