diff --git a/kitty/shaders/custom/pipeline.slang b/kitty/shaders/custom/pipeline.slang
index 89916cf5d..d64953295 100644
--- a/kitty/shaders/custom/pipeline.slang
+++ b/kitty/shaders/custom/pipeline.slang
@@ -39,11 +39,7 @@ uniform Sampler2D backbuffer;
 uniform uint timestamp;
 
 public float4 pipeline_fragment_main(float2 texcoord) {
-    KittyCustomShaderData d;
-    d.backbuffer = backbuffer;
-    d.texcoord = texcoord;
-    d.backbuffer = backbuffer;
-    d.timestamp = timestamp;
+    KittyCustomShaderData d = {timestamp, backbuffer, texcoord};
     float4 color = backbuffer.Sample(texcoord);
     // PIPELINE
     return color;
diff --git a/kitty/shaders/custom/types.slang b/kitty/shaders/custom/types.slang
index c5d0c5a5f..87a7b16f8 100644
--- a/kitty/shaders/custom/types.slang
+++ b/kitty/shaders/custom/types.slang
@@ -5,7 +5,8 @@
 
 
 public struct KittyCustomShaderData {
-    public uint timestamp;
+    public uniform uint timestamp;
+    public uniform Sampler2D backbuffer;
+
     public float2 texcoord;
-    public Sampler2D backbuffer;
 }