diff --git a/src/bundles/surface/src/colorgeom.py b/src/bundles/surface/src/colorgeom.py
index 0933f921ca..2dc566b8c8 100644
--- a/src/bundles/surface/src/colorgeom.py
+++ b/src/bundles/surface/src/colorgeom.py
@@ -206,6 +206,8 @@ def value_range(self):
 
         s = self.surface
         vertices = s.vertices
+        if vertices is None or len(vertices) == 0:
+            return (None, None)
         sp = s.scene_position
         va = vertices if sp.is_identity() else sp * vertices
         v = self.values(va)