diff --git a/manim/mobject/opengl/opengl_vectorized_mobject.py b/manim/mobject/opengl/opengl_vectorized_mobject.py
index 766c3029a9..c8e58da9a0 100644
--- a/manim/mobject/opengl/opengl_vectorized_mobject.py
+++ b/manim/mobject/opengl/opengl_vectorized_mobject.py
@@ -283,7 +283,10 @@ def set_stroke(
 
         if width is not None:
             for mob in self.get_family(recurse):
-                mob.stroke_width = np.array([[width] for width in tuplify(width)])
+                if not isinstance(width, np.ndarray):
+                    mob.stroke_width = np.array([[width] for width in tuplify(width)])
+                else:
+                    mob.stroke_width = width
 
         if background is not None:
             for mob in self.get_family(recurse):