diff --git a/manimlib/mobject/coordinate_systems.py b/manimlib/mobject/coordinate_systems.py
index 0502b19e..eb0c0b83 100644
--- a/manimlib/mobject/coordinate_systems.py
+++ b/manimlib/mobject/coordinate_systems.py
@@ -530,7 +530,6 @@ class ThreeDAxes(Axes):
         z_axis_config: dict = dict(),
         z_normal: Vect3 = DOWN,
         depth: float | None = None,
-        flat_stroke: bool = False,
         **kwargs
     ):
         Axes.__init__(self, x_range, y_range, **kwargs)
@@ -555,8 +554,6 @@ class ThreeDAxes(Axes):
         self.axes.add(self.z_axis)
         self.add(self.z_axis)
 
-        self.set_flat_stroke(flat_stroke)
-
     def get_all_ranges(self) -> list[Sequence[float]]:
         return [self.x_range, self.y_range, self.z_range]
 
diff --git a/manimlib/mobject/three_dimensions.py b/manimlib/mobject/three_dimensions.py
index 05a12ede..d29b7ec2 100644
--- a/manimlib/mobject/three_dimensions.py
+++ b/manimlib/mobject/three_dimensions.py
@@ -38,7 +38,6 @@ class SurfaceMesh(VGroup):
         normal_nudge: float = 1e-2,
         depth_test: bool = True,
         joint_type: str = 'no_joint',
-        flat_stroke: bool = False,
         **kwargs
     ):
         self.uv_surface = uv_surface
@@ -52,7 +51,6 @@ class SurfaceMesh(VGroup):
             joint_type=joint_type,
             **kwargs
         )
-        self.set_flat_stroke(flat_stroke)
 
     def init_points(self) -> None:
         uv_surface = self.uv_surface