diff --git a/manimlib/shaders/quadratic_bezier_stroke/vert.glsl b/manimlib/shaders/quadratic_bezier_stroke/vert.glsl
index 3089c318..6bd488d5 100644
--- a/manimlib/shaders/quadratic_bezier_stroke/vert.glsl
+++ b/manimlib/shaders/quadratic_bezier_stroke/vert.glsl
@@ -6,7 +6,6 @@ uniform float is_fixed_in_frame;
 in vec3 point;
 in vec4 stroke_rgba;
 in float stroke_width;
-in vec3 joint_normal;
 in vec4 joint_product;
 
 // Bezier control point