diff --git a/src/helpers/GridHelper.js b/src/helpers/GridHelper.js
index 5b7e1f784da9fb02f7e23aa1ea00bbf0224a6203..0c26f20739132c171f4f6e9d0c39dfc0ce1e7848 100644
--- a/src/helpers/GridHelper.js
+++ b/src/helpers/GridHelper.js
@@ -63,6 +63,9 @@ GridHelper.prototype = Object.assign( Object.create( LineSegments.prototype ), {
 
 		Object.assign( this.parameters, source.parameters );
 
+		this.geometry.copy( source.geometry );
+		this.material.copy( source.material );
+
 		return this;
 
 	},