diff --git a/gpu/src/external_texture.zig b/gpu/src/external_texture.zig
index 43a1d220..2c6880b4 100644
--- a/gpu/src/external_texture.zig
+++ b/gpu/src/external_texture.zig
@@ -18,14 +18,10 @@ pub const ExternalTexture = opaque {
         plane0: *TextureView,
         plane1: ?*TextureView = null,
         do_yuv_to_rgb_conversion_only: bool = false,
-        // TODO: dawn.json says length 12, does it mean array length?
-        yuv_to_rgb_conversion_matrix: ?[*]const f32 = null,
-        // TODO: dawn.json says length 7, does it mean array length?
-        src_transform_function_parameters: [*]const f32,
-        // TODO: dawn.json says length 7, does it mean array length?
-        dst_transform_function_parameters: [*]const f32,
-        // TODO: dawn.json says length 9, does it mean array length?
-        gamut_conversion_matrix: [*]const f32,
+        yuv_to_rgb_conversion_matrix: ?*const [12]f32 = null,
+        src_transform_function_parameters: *const [7]f32,
+        dst_transform_function_parameters: *const [7]f32,
+        gamut_conversion_matrix: *const [9]f32,
     };
 
     pub inline fn destroy(external_texture: *ExternalTexture) void {