diff --git a/src/bonsai/bonsai/tool/cad.py b/src/bonsai/bonsai/tool/cad.py
index 44b4b58d92..4914a4ff8c 100644
--- a/src/bonsai/bonsai/tool/cad.py
+++ b/src/bonsai/bonsai/tool/cad.py
@@ -100,7 +100,10 @@ class Cad:
         axis = d1.cross(d2).normalized()
 
         # Calculate the unsigned angle between the "d1" and "d2" vectors
-        a = d1.angle(d2)
+        try:
+            a = d1.angle(d2)
+        except:
+            a = 0
 
         # Determine the sign of the angle based on the provided axis
         # If new_angle, determine the direction of the rotation