diff --git a/src/asahi/lib/agx_meta.c b/src/asahi/lib/agx_meta.c
index bab4c3c9644..e536c755e0a 100644
--- a/src/asahi/lib/agx_meta.c
+++ b/src/asahi/lib/agx_meta.c
@@ -79,6 +79,7 @@ agx_build_background_shader(struct agx_meta_cache *cache,
    struct agx_shader_key compiler_key = {
       .fs.ignore_tib_dependencies = true,
       .fs.nr_samples = key->tib.nr_samples,
+      .reserved_preamble = key->reserved_preamble,
    };
 
    for (unsigned rt = 0; rt < ARRAY_SIZE(key->op); ++rt) {
@@ -131,7 +132,10 @@ agx_build_end_of_tile_shader(struct agx_meta_cache *cache,
          .image_dim = dim);
    }
 
-   struct agx_shader_key compiler_key = {0};
+   struct agx_shader_key compiler_key = {
+      .reserved_preamble = key->reserved_preamble,
+   };
+
    return agx_compile_meta_shader(cache, b.shader, &compiler_key, NULL);
 }
 
diff --git a/src/asahi/lib/agx_meta.h b/src/asahi/lib/agx_meta.h
index 8bc84a9ecac..4a1a6ab2b5f 100644
--- a/src/asahi/lib/agx_meta.h
+++ b/src/asahi/lib/agx_meta.h
@@ -27,6 +27,7 @@ enum agx_meta_op {
 struct agx_meta_key {
    struct agx_tilebuffer_layout tib;
    enum agx_meta_op op[8];
+   unsigned reserved_preamble;
 };
 
 struct agx_meta_shader {