diff --git a/embodichain/lab/sim/shapes.py b/embodichain/lab/sim/shapes.py
old mode 100644
new mode 100755
index a804c42d..cad43420
--- a/embodichain/lab/sim/shapes.py
+++ b/embodichain/lab/sim/shapes.py
@@ -80,6 +80,8 @@ def from_dict(cls, init_dict: Dict[str, Any]) -> ShapeCfg:
             if hasattr(cfg, key):
                 attr = getattr(cfg, key)
                 if key == "visual_material" and isinstance(value, dict):
+                    from embodichain.lab.sim.material import VisualMaterialCfg
+
                     setattr(
                         cfg,
                         key,