diff --git a/src/blenderbim/blenderbim/bim/module/drawing/data.py b/src/blenderbim/blenderbim/bim/module/drawing/data.py
index 48d079509b..d9b493cae0 100644
--- a/src/blenderbim/blenderbim/bim/module/drawing/data.py
+++ b/src/blenderbim/blenderbim/bim/module/drawing/data.py
@@ -18,6 +18,7 @@
 
 import os
 import bpy
+import json
 import ifcopenshell.util.element
 import ifcopenshell.util.representation
 import blenderbim.tool as tool