diff --git a/manimlib/mobject/types/vectorized_mobject.py b/manimlib/mobject/types/vectorized_mobject.py
index 13ef447e..8ea51c2c 100644
--- a/manimlib/mobject/types/vectorized_mobject.py
+++ b/manimlib/mobject/types/vectorized_mobject.py
@@ -199,10 +199,9 @@ class VMobject(Mobject):
         if width is not None:
             for mob in self.get_family(recurse):
                 data = mob.data if mob.get_num_points() > 0 else mob._data_defaults
-                width_arr = np.array(listify(width)).flatten()
-                if len(width_arr) == 0:
-                    continue
-                data['stroke_width'][:, 0] = resize_with_interpolation(width_arr, len(data))
+                if not isinstance(width, float | int):
+                    width = resize_with_interpolation(np.array(width), len(data)).flatten()
+                data['stroke_width'][:, 0] = width
 
         if background is not None:
             for mob in self.get_family(recurse):