diff --git a/wgpu/src/shader/color/oklab.wgsl b/wgpu/src/shader/color/oklab.wgsl
index 0dc37ba6..91bceca7 100644
--- a/wgpu/src/shader/color/oklab.wgsl
+++ b/wgpu/src/shader/color/oklab.wgsl
@@ -19,8 +19,5 @@ fn interpolate_color(from_: vec4<f32>, to_: vec4<f32>, factor: f32) -> vec4<f32>
     // Back to linear RGB
     var color = to_rgb * (mixed * mixed * mixed);
 
-    // Alpha interpolation
-    color.a = mix(from_.a, to_.a, factor);
-
     return color;
 }