diff --git a/meshplot/Viewer.py b/meshplot/Viewer.py
index d9ab8ae..0694d2e 100644
--- a/meshplot/Viewer.py
+++ b/meshplot/Viewer.py
@@ -461,8 +461,13 @@ def to_html(self, imports=True, html_frame=True):
         diag = np.linalg.norm(ma-mi)
         mean = (ma - mi) / 2 + mi
         for r, obj in enumerate(self.__objects):
-            v = self.__objects[obj]["geometry"].attributes["position"].array
-            v -= mean
+            try:
+                v = self.__objects[obj]["geometry"].attributes["position"].array
+                v -= mean
+            except:
+                v = self.__objects[obj]["geometry"].positions
+                v -= mean
+            
 
         scale = self.__s["scale"] * (diag)
         self._orbit.target = [0.0, 0.0, 0.0]
@@ -495,8 +500,12 @@ def to_html(self, imports=True, html_frame=True):
 
         # Revert changes
         for r, obj in enumerate(self.__objects):
-            v = self.__objects[obj]["geometry"].attributes["position"].array
-            v += mean
+            try:
+                v = self.__objects[obj]["geometry"].attributes["position"].array
+                v += mean
+            except:
+                v = self.__objects[obj]["geometry"].positions
+                v += mean
         self.__update_view()
 
         return s